He was a serial womaniser, obsessed with violent sex. She was a girl who would do anything to make her man happy. The twisted relationship that develops between Paul and his young wife Karla triggered a sickening chain of events that included kidnap, multiple rape and murder. Based on interviews, police reports and videotapes shot by the perpetrators as they committed their terrible crimes, this is the true story of the "couple next door" and the pure evil that drove them to kill and kill again...