After a hard day of volleyball at the beach, a teen whose parents are away decides to have a slumber party with her girlfriends. Their boyfriends predictably show up to scare them, but a stranger from the beach is also seen lurking around the house. Soon the group begins experiencing an attrition problem.

A group of teenagers spend the night in a furniture shop for a graduation party. When one of them talks her boyfriend into a game of hide-and-seek, a psycho killer starts hunting them down one by one.

A college freshman returns to Los Angeles for Christmas at his ex-girlfriend's request, but discovers that his former best friend has an out-of-control drug habit.