Michael Harding returns home from military school to find his mother happily in love and living with her new boyfriend, David. As the two men get to know each other, Michael becomes more and more suspicious of the man who is always there with a helpful hand. Is he really the man of her dreams or could David be hiding a dark side?

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.

Rémi is a man trapped in a deteriorating marriage. When his wife is unexpectedly killed in a car accident, Rémi is left with his stepdaughter, Marion, who chooses to stay with him rather than live with her birth father. After the initial shock passes, Rémi is caught off-guard when Marion begins expressing her attraction to him. Initially repulsed, Marion's mature beauty wears him down as he finally caves to her seductions.

A seemingly mild mannered man -- 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.

When three adult siblings meet the offbeat man who their widowed mom fawns over, they take drastic actions to stop them from ever getting married.