interrogation video obtained by abc news, we're seeing the moment police confronted papini with her lies. husband keith by her side. >> the reason why you can describe the room is because you stayed in the room in the dark for hours -- for days on end. >> reporter: in november of 2016, papini vanished. the search for her gaining international attention. three weeks later, thanksgiving morning, she was found on a highway, seen here bound in chains. her breathless cries captured on this 911 call. >> please! >> sherri, i need you to listen to me. >> please. >> reporter: papini had claimed two hispanic women had kidnapped, beaten, even branded her. injuries seen in images obtained by abc news. her husband tearfully describing her condition to me just days after her return. >> her poor face. i got nauseated just looking at her. the bruises were just intense. >> reporter: but three years later, police would trace dna on papini to an ex-boyfriend, james reyes. police say papini planned it all. tricking reyes into taking her to his home, where she self-inflicted those injuries, some with his help. >> i didn't

interrogation video obtained by abc news, we're seeing the moment police confronted papini with her lies. husband keithside. >> reporter: november 2016, papini vanished. the search for her gaining international attention. three weeks later, thanksgiving morning, she was found on a highway, seen here, bound in chains. her breathless cries captured on this 911 call. >> please! >> sherri, i need you to listen to me. >> reporter: papini had claimed two hispanic women had kidnapped, beaten, branded her. injuries seen in images obtained by abc news, her husband tearfully describing her condition days after her return. >> her poor face. i got nauseated just looking at her. the bruises were intense. >> reporter: three years later, police would trace dna on papini to an ex-boyfriend, james reyes. police say papini planned it, tricking reyes into taking her to his home where she self-inflicted injuries, some with his help. but when confronted with the evidence, papini finally seems to break. >> reporter: for keith papini that police interrogation changed everything. >> you're telling me, okay, you can go home no

detectives met with sherry and her husband the time keith papini. more than 2 years ago, detectives began poking holes and sherry story starting with the injuries on her body when she was found linking the dna to her ex-boyfriend, who she ran off with during the time she was missing. >> the reason why the brand it's because he went to the store about tools and brand new. the reason why because my >> detectives told sherri papini they got the information because her ex-boyfriend passed a lie detector test. eventually she admitted she was not faithful to keith but still insisted the 2 hispanic women she claimed kidnapped. her were real. >> you know, when it got yes, and i'm done speaking to 2 more here. i will not a resident or by that. >> are. >> prosecutors were only asking for 8 months of prison time. but earlier this week, a federal judge told per pd that you felt she deserved more time because he didn't believe she was actually sorry. it was only sorry because she was caught. >> still ahead, protests growing and iran following the death of a woma

that was sherri and keith papini.s >> and that's why he makes >> this all stems from when sherry claims she was kidnapped in reading by 2 hispanic women in 2016 later found along interstate 5 in yolo county injured. but in this interrogation video, it's all about to become clear that none of that was true. >> we >> sherry's husband, keith, also in the room with her as detectives started poking holes in her story. they started with the injuries on her body when she was found linking the dna to her ex-boyfriend, the man she ran off with during the time she was missing. the reason why the brand? >> it's because he went to the store, bought the brand new. the reason why because my that they tell sherry they know all of this because her ex passed a lie detector test. >> but she wasn't by get there is no way it's >> it is. the unit that it investigators remain patient but warned her to tell you music you won't have to timelines. >> eventually admits she wasn't faithful to keith. but that is all she would have meant to and e