The Stepfather. Terry O'Quinn is a man obsessed with having the perfect idealised family - and he moves from single mother to single mother, marrying them and then slaughtering the entire family and moving on when the reality fails to live up to the fantasy. The lovely Jill Schoelen is Stephanie, the teenage girl who senses something dark and dangerous behind her new stepfather's cheery Father Knows Best facade. This mid 80s thriller is still a classic chiller!