Kimberly Crepeaux is no good, a notorious jailhouse snitch, teen mother, and heroin addict whose petty crimes are well-known to the rural Maine community where she lives. So when she confesses to her role in the brutal murders of Jackie Pelletier and Ian Kelly, the daughter of a well-known local family and her sweetheart, the locals have little reason to believe her story, especially when she names as her accomplice the town's favorite son, Mathias...