i addressed it to curtis lovelace. i asked him if there was a possibility that blankets had been under her arms when he discovered her? >> what did he say? >> no. >> you are saying the scene he saw it is when he saw it and found his wife, by his account? >> yes. >> then the detective was not getting hung up on one detail this early in the case. >> every detective needs to keep in mind, there could be a bigger picture. >> oh, yes, there was a portrait of a woman, a par trait of a marriage, filtered with details painted in a most unflattering life. >> coming up, a peek behind back doors. you were drinking too much. >> i drank too much. >> corey was drinking too much in. >> and corey was drinking too much. >> i remember crying and not believing it. >> when "dateline" continues. there's an invisible threat in your backyard that could cause deadly heartworm disease for your dog. but not if you protect him every month with heartgard plus, the #1 choice of dogs. digestive and neurological side effects have rarely been reporte

>> curtis lovelace, a life interrupted. >>> i'm craig melvin. >> and i'm natalie morales. >> and this is "dateline." >> they said, we need you to get in the car with us.sa they zip tied my arms and zip tied my legs, duct tape my hair. there's no words. i'm sitting there, just hysterical. it's terrifying. >> she thought he was mr. right -- a confident, handsome surgeon. until the good doctor seemed to turn sinister. >> he put his hands over my face and said, "go ahead and try to leave.” i didn't know where else to go. >> i mean, she just broke down she looked afraid. >> taunts. sloats. hi then, something deadly. >> they said he had hired somebody to get rid of me. >> a doctor, plotting a murder? >> he's giving you a way to kill someone. >> very detailed, precise instructions. >> investigators would launch a plot of their own and unravel not one murder scheme, but two. >> so now you have a man and a woman who both want their exes dead. is that beyond bizarre? >> shocking. >> it was just unreal. i couldn't believe this was happening. >> an unthinkable crime and an unbelievable twist. >>