once again, here is dennis murphy. >> reporter: imagine for a minute you're dalia dippolito. in a police interrogation room are accusing you of plotting your husband's murder. dalia didn't know it then, but her husband michael dippolito was still very much alive, and was about to come face to face with his wife of six months, who seemed to want him dead. >> i'm thinkin' in my head, "i'm lucky. i'm lucky." but i'm like, "i'm so screwed right now." the worst day in the world. >> reporter: before waking up that day, michael dippolito was clueless police thought his wife of six months had hired a hit man to kill him. instead, he believed he and dalia had begun a loving new chapter together. they were about to start a family. she told him she was pregnant. dalia was at the gym when those tv cameras from the reality show "cops" captured the moment police knocked on mike's front door. >> police department open your door! sorry, i'm srgt. sheridan from the boynton police department. >> yes, hi. >> can i talk to you? >> yes, for sure. >> we say, "hey, listen, this is what we're doing.