have brought the same for me ♪ this is "nightline." tonight, hiring a hit man. can you imagine finding out there's a price on your head? >> there has been a contract put out on your wife. >> -- a contract out for your life? it sounds insane. >> that's what happened to this mother of three putting her entire family on edge. >> made me question everything that i ever knew about him. was i next? was my sister next? >> tonight, guess who police say her own flesh and blood. super charged. a lean, green, fat-burning machine. kale is everywhere from hollywood to the white house. could it be the latest secret to a healthier life? move own candy crush. a new addictive app is raking in millions. frenzied fans are living a fantasy life in kim kardashian's

hollywood. the money they're spending, that's very real. but first the "nightline 5." >> number one in just 60 seconds.

good even. i'm byron pitts. hiring a hit man to make someone disappear. more than just a hollywood plot line. it's a crime that's more common

than you might imagine. the people you're about to meet thought murder might be the best way out of their relationship problems. or at the very least an easy payday. one would-be killer allegedly wanted his own mother dead. here's abc's john donvan. >> started as a joke. and it got out of hand. and it's cost him everything. >> reporter: big sky country. land of open plains. but closed up inside this house, a family with a dark story. >> everything changed in a matter of a few hours. >> reporter: it begins on the outskirts of billings four years ago at this used car lot when an fbi agent stops by to deliver to owner dana campbell an unthinkable message. >> he asked to speak to me in private. he said, i hate to be the one to inform you of this but we've been notified that there has been a contract put out on your life. >> a contract out for your life?

it just sounds -- it sounds insane. >> reporter: not as insane as what comes next. the fbi agent says he has a pretty good idea of who took out the hit. it was her own son matthew. >> they have enough evidence that they are safe in saying that it was my brother who had done that. he had contacted an undercover fbi agent and was making plans to have him kill my mom. >> reporter: the big question, why? nicky says she thought their family had an unbreakable bond. they enjoyed family trips together and only bickered the way normal brothers and sisters do. >> we picked on each other and my little sister a lot. but end of the day we knew we had each other. >> reporter: matthew's family thinks he wanted something more. his mother's money. >> my two girls think now, maybe, if my estate had been divided into thirds after i passed away, maybe he might have even considered, you know, killing them so he could have 100% of it all.

>> made me question everything that i ever knew about him. you know. was i next? was my sister next? >> reporter: we'll get back to that in a minute. turns out trying to hire someone to make a loved one disappear may be more common than you think. meet julia marfeld who after pleasantries gets right down to it. in one of the most staggering conversations you may ever happen to overhear, she's planning her husband's murder. >> you said something about a gunshot, is that how you want me to do it, shoot him? >> unless you can do it painlessly, i would -- >> i would prefer to use either a knife or a gun. quick and easy. >> less painful. >> where do you want me to shoot him? do you want an open casket, closed casket, what do you want? >> i want an open casket. >> reporter: the stuff she's worried about, like the mess it might make -- >> in the house?

>> it would be messy. >> reporter: she didn't need to worry about because her husband is still alive. the guy she's talking to on the right hand, he is an undercover police officer. so why not just divorce her husband? well, there was the insurance money to be had if they were dead. and then there were his feelings to consider. >> divorcing him, i didn't want to worry about the judgment of my family, i didn't have to worry about breaking his heart, stuff like this, if i got a clean getaway. >> reporter: not so clean after all. she is now serving a sentence, at least five years and eight months. hiring the wrong guy turns out to be a costly but not uncommon mistake. >> what they do is they step to a friend or associate or someone that they knew in their past. and what happens in the vast majority of the time, the person they step to goes to law enforcement. >> really? they get ratted out? >> i'm 5,000% sure. >> reporter: that's what happened to delia dippolito in

2009 allegedly negotiating terps for her husband's murder. tours out the supposed killer for hire in the driver's seat was also an undercover top. dippolito was called home by police and given the false news that inside her husband lay dead. murdered. >> okay, i'm sorry to tell you, ma'am, he's been killed. >> oh, oh! >> he's been killed, man. >> no, no! >> reporter: then they got her into an interrogation room. >> i just want to see my husband. >> she continues to speak as a shocked widow. as far as she knows her husband is dead. then they tell her the killer is one of their own men. >> that's an undercover police officer. we filmed everything that you did. recorded everything that you did. >> i didn't do anything. >> listen to me. >> i didn't do anything. >> you're going to jail. >> i didn't do anything, please, i didn't do anything. >> reporter: finally they tell her that her husband is still alive. >> your husband is well and alive. >> thank god. >> oh, yes.

>> can i see him? >> he doesn't want to see you. >> reporter: delia's husband didn't believe her when she got him on the phone from jail. >> you know more than anybody it's not true. >> you sent me down to have me killed, i heard that. >> that is not true. >> how is that not true? >> how could you believe that? >> i heard your voice. >> like i didn't do anything. >> it doesn't matter, you can hire 5,000 lawyers, they're charging your ass. they have your voice, your face, everything, on tape. >> reporter: dippolito was sentenced to 20 years. just last week, an appeals court reversed that conviction because the jury was never asked how much they knew about her case. >> i didn't do anything and -- >> reporter: dippolito was granted a new trial. through his lawyer mike dippolito says he's disappointed. >> people believe in their naive state that they can step to somebody else, have them commit the murder. they think if that guy pulls the trigger i'm clear.

>> reporter: back in montana, that's what it seems matthew campbell was counting on when someone talked to friend bss taking out a hit on his mother. but again, a problem. >> somebody felt that my brother was seriously contemplating doing this. that person went to the department of corrections and basically told on my brother. hey, matthew campbell wants to hire somebody to kill his mother. >> reporter: that's all it took. an undercover fbi agent posing as a hit man approached matthew. matthew is busted and sentenced to five years in federal prison. on the outside, dana and her daughters struggle to understand how this could have happened. matthew tries to explain in letters home. >> this all blew up in my face. i can't handle it. i finally see where my lifestyle has gotten me. and i have been saved. in the name of jesus christ. all of this is cold, hard truth.

and you don't have to believe it. but i hope you believe your son. >> reporter: over the last four years, letters like this kept coming. and with them, finally, a measure of forgiveness. the family now believes matthew never really intended to kill his mother and they are waiting for him to come home from prison this month. >> he wants to move on and put everything past him. and we do too. i think, yeah, we're going to flourish into probably one of the best relationships i think i've ever had. >> reporter: hope springs eternal in big sky country. for "nightline," i'm john donvan outside billings, montana. next, all hail kale. popeye had spinach. now everyone from michelle obama to glen notwithstanding paltrow is swearing by kale. can the superfood live up to the hype? (woman) the constipation and belly pain feel tight like a vise.

how can i ease this pain? (man) when i can't go, it's like rocks piling up. i wish i could find some relief. (announcer) ask your doctor about linzess-- a once-daily capsule for adults with ibs with constipation or chronic idiopathic constipation. linzess is thought to help calm pain-sensing nerves and accelerate bowel movements. it helps you proactively manage your symptoms. do not give linzess to children under 6, and it should not be given to children 6 to 17. it may harm them. don't take linzess if you have a bowel blockage. get immediate help if you develop unusual or severe stomach pain especially with bloody or black stools. the most common side effect is diarrhea, sometimes severe. if it's severe, stop taking linzess and call your doctor right away. other side effects include, gas, stomach-area pain and swelling. bottom line, ask your doctor about linzess today.

♪ fill their bowl with the meaty tastes they're looking for, with friskies grillers. tender meaty pieces and crunchy bites. in delicious chicken, beef, turkey, and garden veggie flavors. friskies grillers. why let erectile dysfunction get in your way? this is the age of knowing what you're made of. talk to your doctor about viagra. ask if your heart is healthy enough for sex. do not take viagra if you take nitrates for chest pain... ...it may cause an unsafe drop in blood pressure. side effects include headache, flushing, upset stomach, and abnormal vision. to avoid long-term injury, seek immediate medical help for an erection lasting more than four hours. stop taking viagra and call your doctor right away if you experience a sudden decrease or loss in vision or hearing. this is the age... ...of taking action. viagra. talk to your doctor. trublcovergirl p!nkrfect blend for each of us

blend of rockstar and mama bear. her trublend... light 4 it blends in doesn't build up for a flawless nude look find your trublend at easy breezy beautiful covergirl get reait's crabfest atk, dip. red lobster! the years largest variety of crab. like new crab lover's trio! or try new jumbo lump crab over wood-grilled salmon. crabfest is now. but only for a limited time. so hurry in, and sea food differently!

it's the new "it" veggie, the hottest superfood in your grocery store, kale. celebrities swear by it, the first lady of the united states is planting this greenleaf with a bitter bite in her garden. yes, it's cool to eat kale. darren rovell explains what all the fuss is about. >> reporter: is there anything hotter than kale? it's in every salad, dominating lettuce bins, popping up in places we could never imagine. >> kale is king. >> reporter: the kale economy has turned it into a money

plant. there are kale smoothies in juice bars. and kale martinis in trendy new york restaurants. there's even kale nail polish. gwyneth paltrow has devised a use for kale in recipe after recipe on her blog. first lady michelle obama has planted kale in the white house garden. >> this trend came out of nowhere are. it's incredible how fast this item became popular. >> reporter: the demand for this leafy green can be seen here in california's salinas valley. also known as the salad bowl of the world. that's where church brothers has doubled the amount of kale they planted in each of the last three years. >> look, all you can see, as far as you can see. that's how much people like it. >> honestly, i can't see the end of this. >> reporter: whole foods sells more than 22,000 bunches of kale per day in its stores. and mentions of kale on u.s. restaurant men use over the last two years are up 233%. >> this is essentially what was

on the outside of the salad bar. >> exactly. >> the real stuff was here. and so now it's gone like this. and now it's -- now this is the salad. >> it's climbed from the darkest area into the salad bar, i think that's right. >> reporter: that role reversal helped by culinary shows spending time extolling the virtues of the cruciferous wonder. >> i love it because it's delicious raw, delicious cooked. >> reporter: is it a fad? what's the shelf life of a leaf that takes like, well, a leaf? >> compared to a lettuce? or a spinach? it really doesn't have that much flavor. >> reporter: it doesn't taste the greatest. the texture isn't the greatest. but is that part of the whole marketing of it? >> trust me, if there's a way for me to make this green kale taste any better? i would do it. >> reporter: its popularity has elicited haters. comedian jiff gafigan --

>> can we stop with the kale propaganda? that stuff tastes like bug spray. >> reporter: the lovers of kale prevail. sprouting up innovative new products while one of the original twists on kale, kale chips, continues to grow. >> it's just air dried. >> reporter: brad gruno is riding the kale wave and making it taste better. >> we have five flavors starting with naked, the vampire killer. put garlic in there, what are we going to call it? vampire killer! then we have the nasty hot. then we have the nacho. then we have the pinot kale-ada. >> reporter: brad's raw foods will pull in an estimated $20 million this year. 70% of that from kale products. >> it is the color of money. >> reporter: make no mistake, kale's greatest marketing ploy is how good it might be for you. >> this is the highest nutrient dense leafy green they sell in a grocery store. it's amazing how it blew up.

>> do you grow this yourself? >> reporter: four years ago, long before seemingly everyone knew what kale was, gruno was selling bags of kale chips at this farmer's market in bucks county, pennsylvania. >> i had little bowls and just give it away all the time, taste it, taste it. saying the same story over and over again. >> reporter: when people bought it for the price he was selling it for, he knew he had a winner. >> i love your chips. >> thank you. >> here i am selling a bag of chips for seven bucks. know what i mean? people thought i was crazy. you know how many people said, brad, it's the craziest thing you ever did. then look what happened to my business. >> reporter: he's now using 40,000 pounds of kale a week. if you haven't sunk your teeth into kale yet, he has something up his sleeve that might lure you in. >> when is chocolate kale come snlg. >> this year. >> it? >> holiday chocolate with coffee, like a coffee taste on

the kale. >> reporter: take that, arugula. i'm darren rovell for "nightline" in bucks county, pennsylvania. >> i love kale. next, why kim kardashian's app is causing controversy. and raking in millions. the summer of this.mmer. the summer that summers from here on will be compared to. where memories will be forged into the sand. and then hung on a wall for years to come. get out there, with over 50,000 hotels at $150 dollars or less. expedia. find yours.

♪ [ female announcer ] when the pressure's on... only secret offers clinical strength invisible solid and clear gel with 100% odor protection. secret clinical strength. if you're suffering from constipation or irregularity, powders may take days to work. for gentle overnight relief, try dulcolax laxative tablets. ducolax provides gentle overnight relief, unlike miralax that can take up to 3 days. dulcolax, for relief you can count on.

devewith the highest levelde of engineering... design... safety... and performance. our latest creation is no different. with one exception... introducing the mercedes-benz b-class.

it's electric! it's electric! the first electric vehicle from mercedes-benz. ♪ [ barks ] whoo! mmm! ♪ ♪ oh, yeah [ whistling ] [ male announcer ] discover your new orleans. start exploring at followyournola.com. [ woman ] and i love new orleans! crazed fans are opening

wallets for an addictive new app expected to rake in $85 million. the source behind it may surprise you. here's abc's nick watt. >> reporter: think of someone, anyone, you'd like to see grab an $85 million windfall. yeah. i bet you weren't thinking kim kardashian. she's already a model/actress/entrepreneur /reality doyenne/married to a rich husband. she could now earn $85 million from an iphone app. "kim kardashian's hollywood." >> it's an escapist fantasy into the world of kim kardashian which we've all seen on tv for so long, it's this crazy life where there are no problems except for whether or not your selfie in rome looks nice. >> okay, so you can make yourself a boy. >> reporter: erin, an intern, plays the game. she is my guide.

>> i don't understand. i really don't understand this. >> you're basically -- you have to work your way up. >> reporter: from a nobody to an a-list celeb like kim. >> which you achieve by unlocking certain goals like putting on a nicer outfit, choosing the right shoes, impressing gentlemen. >> this is super cute. >> reporter: it's the angry birds, the candy crush of totally right now. it even has addicts like tracy. >> i have to spend 14 k-stars to stop him from breaking up with me which is really expensive but i'll do it. >> reporter: she spent hundreds of dollars on her kkh habit. >> there's a part that really taps into this addictive part of your brain. sort of the way that like sugar would or any kind of drug. it's kind of something that you can't even explain until you've tried it. >> reporter: the money-making genius of this game, like so many others, is in the in-app

purchases. extra energy and so-called k-stars that speed progress. >> it just doesn't really feel real until you get the bill later. >> reporter: but real human beings like tracy morrissey are spending real money to buy their avatar's way into kim's virtual inner circle. which of course has spawned an online torrent of bile from the parents who foot the bill. >> i would call it a guilty pleasure. it's interesting. >> you're an intelligent person. >> thank you. >> reporter: we all love to mock kim for being famous for just being famous but this is actually a concrete achievement. she was, say the makers, heavily involved in every aspect. and their revenue rose 50% last quarter as a result. >> what it says about our society is saddening. to play a game in which your charm and your looks are prized above all and we put celebrity on a pedestal, a reflection of the state of our times.

>> why didn't i think of a game like that? >> because you're not a kardashian. >> reporter: no, nick watt, total z-list. for "nightline" in los angeles. >> i think nick should have his own app. thank you for watching abc news. tune in to "good morning america" tomorrow. and as always, we're online at abcnews.com.