Terrible Delights #79: Satan's Children

This week's pick is the 1975 supposedly revenge horror film Satan's Children. Teenager Bobby has had enough of his abusive stepfather and evil, weirdly horny stepsister. He runs away only to be assaulted by a group of unsavory men, who leave him in a ditch. He is then taken in by a Satanic cult and spends most of the movie trying to escape their compound in his tidy whities.