The Stepfather is a 1987 American thriller film starring Terry O'Quinn in the title role. It is loosely based on the life of mass murderer John List, although the plot is more commonly associated with slasher films of the era than a true story. It was directed by Joseph Ruben and written by Donald E. Westlake, from a story by Westlake, Carolyn Lefcourt and Brian Garfield. This film was met with critical acclaim upon its release. The film was also followed by two sequels, released in 1989 and 1992 respectively and a remake also called The Stepfather which was released on October 16, 2009.
Seemingly mild-mannered Henry Morrison — who has just murdered his entire family — quickly adopts a new identity and leaves town. After building a new relationship with a widow and her teenage daughter, he struggles to hide his true identity and maintain a grip on reality.
"Stepfather" Jerry Blake escapes an insane asylum and winds up in another town, this time impersonating a marriage counselor. With a future wife and new stepson who love him, Blake eliminates anyone who stands in his way to building the perfect family.
After escaping a Puget Sound institution, "Stepfather" Gene Clifford alters his appearance with plastic surgery and takes on another new identity: Keith Grant. Moving to Deer View, California, Keith falls for a divorced school principal, arousing the suspicions of her wheelchair-bound, computer-savvy son.
