How well do you know your neighbors? NIGHTMARE NEXT DOOR tells the tales of mysterious murders from behind white picket fences that rocked Middle America. Each hour bring a new murder mystery and a new look into the evil that can lurk in the heart and soul of a tight-knit community. Interviews with investigators, prosecutors, family members and/or neighbors piece together the twisting tale of a classic whodunit, and forensic experiments lead viewers into the heart of the investigation.