As they celebrate their high school graduation, four friends are involved in a hit-and-run accident when their car hits and apparently kills a pedestrian on an isolated roadway. They dispose of the body and vow to keep the incident a secret, a year later somebody starts sending them letters bearing the warning "I Know What You Did Last...

A disgraced FBI agent with a drinking problem joins nine other troubled law enforcement officers at an isolated detox clinic in the wilds of Wyoming. But the therapeutic sanctuary becomes a nightmarish hellhole when a major snowstorm cuts off the clinic from the outside world and enables a killer on the inside to get busy.

A group of teenagers fear for their lives in the swamps of Louisiana, chased by Mr. Jangles, a man possessed by 13 evil souls, and now relentless in his pursuit of new victims.

A power-line repairman gets off of work early and heads home (to his family?). Unfortunately, he gets kidnapped is locked up in the trunk of his own car.