A group of students at a posh private school spend the majority of their time heckling their instructors and frequenting a local prostitute. In a shocking discovery, the father of one of the students is found brutally murdered. Shortly afterward, two more people, an instructor and the son of the murdered man, are found dead as well. As terror grips the small but affluent community, a detective investigates the crimes. The prime suspect is a medical instructor at the school who was involved in Nazi experiments. The first murdered man recognized the man and foolishly confronted him, giving him a week to turn himself in, hence the title. Not wanting to face a war-crimes tribunal, the medical maniac decides to take matters into his own hands.