A group of Christian teens visits the Happy Day Bible Camp, where in 1977 a sadistic nun punished a group of teens for their sinful behavior.A group of Christian teens visits the Happy Day Bible Camp, where in 1977 a sadistic nun punished a group of teens for their sinful behavior.A group of Christian teens visits the Happy Day Bible Camp, where in 1977 a sadistic nun punished a group of teens for their sinful behavior.