Abusive former summer camp caretaker Cropsy, horribly burned from a prank gone wrong five years earlier, lurks around upstate NY summer Camp Stonewater with garden shears and bent on killing the teenagers responsible for his disfigurement.

The rich have always fed off the poor. This time, it’s for real. Bill Whitney is worried that he is different to his sister and parents. They mix with other upper-class people while Bill is more down to earth. Even his girlfriend seems a bit odd. All is revealed when Bill returns home to find a party in full swing.