When socialite and heiress Julie Wardh begins receiving blackmail letters attributed to a mysterious serial killer, she suspects her cruel and sadistic former lover Jean is behind them. With her husband Neil frequently out of town, she falls into the arms of her friend's cousin George, and as the unknown assassin begins to make his move, she fears that one of the three men in her life may be the killer.
Unfortunately the movie The Strange Vice of Mrs Wardh is not yet available on Disney Plus.
| Writing | Eduardo Manzanos | Screenplay |
| Production | Luciano Martino | Producer |
| Production | Antonio Crescenzi | Producer |
| Writing | Vittorio Caronia | Screenplay |
| Writing | Ernesto Gastaldi | Screenplay |
| Directing | Sergio Martino | Director |
| Editing | Eugenio Alabiso | Editor |
| Sound | Nora Orlandi | Original Music Composer |
| Camera | Florian Trenker | Director of Photography |
| Camera | Emilio Foriscot | Director of Photography |
| Camera | Giancarlo Ferrando | Camera Operator |
| Writing | Eduardo Manzanos | Original Story |
| Sound | Paolo Ormi | Music Director |
| Production | Florian Trenker | Production Manager |
| Camera | Michele Picciaredda | Assistant Camera |
| Directing | Mirella Malatesta | Script Supervisor |
| Costume & Make-Up | Mario Di Salvio | Makeup Artist |
| Costume & Make-Up | Riccardo Domenici | Costume Design |
| Editing | Amedeo Moriani | Assistant Editor |
| Production | Franco Fogagnolo | Production Supervisor |
| Directing | Vittorio Caronia | Assistant Director |
| Directing | Francisco Rodríguez | Assistant Director |
| Camera | Francesco Narducci | Still Photographer |
| Production | Lamberto Palmieri | Unit Manager |
| Production | Franco Fogagnolo | Unit Manager |
| Art | Jaime Pérez Cubero | Set Designer |
| Art | José Luis Galicia | Set Designer |
| Sound | Pietro Ortolani | Sound Recordist |
