Vito Trabucco directs this comedy horror starring Tim Sullivan. When a group of young, sex-crazed Christians get sent to Happy Day Bible Camp, they decide to ignore the rumours of the brutal murders that took place there seven years ago and enjoy the time away from their parents. It is said that Sister Mary Chopper (Sullivan), a devout nun, killed a group of teenagers back in 1977 as penance for their unholy sins. As the latest group of blasphemous adolescents make themselves comfortable in the camp, they begin to accumulate a long list of sins with which Sister Mary Chopper will not be pleased.