The wife and mistress of a cruel school master collaborate in a carefully planned and executed scheme to murder him. The plan goes well until the body, which has been strategically dumped, disappears. The psychological strain starts to weigh on the two women when a retired police investigator begins looking into the man's disappearance on a whim.
Unfortunately the movie Diabolique is not yet available on HBO Max.
| Writing | Don Roos | Screenplay |
| Directing | Jeremiah S. Chechik | Director |
| Production | James G. Robinson | Producer |
| Editing | Carol Littleton | Editor |
| Writing | Thomas Narcejac | Novel |
| Sound | Randy Edelman | Original Music Composer |
| Camera | Peter James | Director of Photography |
| Writing | Pierre Boileau | Novel |
| Art | Dennis Bradford | Art Direction |
| Costume & Make-Up | L'Wren Scott | Costume Design |
| Production | Bill Todman Jr. | Executive Producer |
| Art | Leslie Dilley | Production Design |
| Production | Gary Barber | Executive Producer |
| Production | Chuck Binder | Executive Producer |
| Production | Gary Daigler | Co-Producer |
| Costume & Make-Up | Michael Kaplan | Costume Design |
| Writing | Henri-Georges Clouzot | Original Film Writer |
| Production | Kirsten W. Welles | Associate Producer |
| Production | Jackie Burch | Casting |
| Art | Michael Seirton | Set Decoration |
| Production | Marvin Worth | Producer |
| Production | Jerry Offsay | Executive Producer |
| Crew | Donna Evans | Stunts |
