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.
You can now watch The Stepfather online on the following streaming providers in the United States.
| Writing | Carolyn Lefcourt | Story |
| Production | Jay Benson | Producer |
| Camera | John Lindley | Director of Photography |
| Sound | Patrick Moraz | Original Music Composer |
| Art | James William Newport | Production Design |
| Editing | George Bowers | Editor |
| Writing | Donald E. Westlake | Story |
| Directing | Joseph Ruben | Director |
| Writing | Brian Garfield | Story |
| Writing | Donald E. Westlake | Screenplay |
| Art | David Willson | Art Direction |
| Art | Kimberley Richardson | Set Decoration |
| Production | Mike Fenton | Casting |
| Costume & Make-Up | Maurice Parkhurst | Makeup Artist |
| Costume & Make-Up | Susan Boyd | Hairstylist |
| Production | Jane Feinberg | Casting |
| Production | Judy Taylor | Casting |
| Costume & Make-Up | Mina Mittelman | Costume Design |
| Production | Dennis A. Brown | Executive In Charge Of Production |
| Production | Warren Carr | Production Manager |
| Directing | Michael E. Steele | First Assistant Director |
| Directing | Casey Grant | Second Assistant Director |
| Directing | James Marshall | Third Assistant Director |
| Art | Rex Raglan | Assistant Art Director |
| Art | Len Morganti | Storyboard Artist |
| Production | Matthew O'Connor | Location Manager |
| Camera | Rod Parkhurst | Camera Operator |
| Camera | John 'Sandy' McCallum | First Assistant Camera |
| Camera | Chris Harris | Second Assistant Camera |
| Camera | Brewster Ingram | Camera Operator |
| Camera | Robert Crone | Steadicam Operator |
| Directing | Christine Wilson | Script Supervisor |
| Camera | Tim Hogan | Key Grip |
| Camera | Ken Hemphill | Grip |
| Camera | John L. Brown | Dolly Grip |
| Camera | R.K. Hill | Grip |
| Camera | Oliver Berg | Grip |
| Camera | Jeff Plecas | Grip |
| Camera | Dan Bennett | Grip |
| Camera | Barry Donlevy | Grip |
| Lighting | David R. Anderson | Gaffer |
| Lighting | Duncan MacGregor | Best Boy Electric |
| Lighting | Ken W. Anderson | Best Boy Electric |
| Sound | Larry Sutton | Production Sound Mixer |
| Sound | Graham Crowell | Boom Operator |
| Art | Annmarie Corbett | Assistant Set Decoration |
| Art | Jeremy Borsos | Set Dresser |
| Art | David Chiasson | Set Dresser |
| Art | Bill Thumm | Property Master |
| Art | R.D. 'Luther' Fairbairn | Props |
| Crew | William H. Orr | Special Effects Coordinator |
| Art | Geoff Hilliard | Construction Coordinator |
| Art | Barry Kootchin | Paint Coordinator |
| Art | Gary Brooks | Greensman |
| Costume & Make-Up | Andrew Brown | Costume Supervisor |
| Costume & Make-Up | Jean Murphy | Costumer |
| Crew | Robert Weinberger | Unit Publicist |
| Camera | Joseph Lederer | Still Photographer |
| Crew | Joanne Ryan | Craft Service |
| Crew | Tink Ten Eyck | Production Controller |
| Production | Patti Allen | Production Coordinator |
| Production | Myrna Cobb | Assistant Production Coordinator |
| Production | Linda Kelly | Production Accountant |
| Production | Lynn Elston | Assistant Accountant |
| Production | Jim Jasterzebski | Casting Assistant |
| Crew | Scott Irvine | Transportation Coordinator |
| Crew | Dave Bowe | Transportation Captain |
| Crew | Bill McCurraugh | Transportation Co-Captain |
| Crew | John Wardlow | Stunt Coordinator |
| Crew | Tim Myers | Post Production Supervisor |
| Editing | Christopher Koefoed | Assistant Editor |
| Editing | Michael Smith | Assistant Editor |
| Editing | Bruce Giesbrecht | Assistant Editor |
| Sound | Keith Stafford | Supervising Sound Editor |
| Sound | G.W. Davis | Sound Editor |
| Sound | Richard Stewart | Assistant Sound Editor |
| Sound | Kathleen Bennett | Music Editor |
| Sound | Chris Haire | Sound Re-Recording Mixer |
| Sound | John L. Anderson | Sound Re-Recording Mixer |
| Sound | Doug Davey | Sound Re-Recording Mixer |
| Production | Barbara Harris | ADR Voice Casting |
| Crew | Jim Dunn | Stunts |
| Crew | Jacob Rupp | Stunts |
| Crew | Kathy Hubble | Stunts |
