Howard Wilton (Ryan) is een simpele man die door weduwe Helen (Lupino) wordt ingehuurd voor huishoudelijke klusjes. Wat ze niet weet is dat Howard, die op zich aardig is, in schizofrene buien geweld pleegt en het daarna vergeet.
Nee, helaas is Beware, My Lovely nog niet beschikbaar op Netflix in Nederland.
| Writing | Mel Dinelli | Writer |
| Writing | Mel Dinelli | Story |
| Directing | Harry Horner | Director |
| Production | Collier Young | Producer |
| Camera | George E. Diskant | Director of Photography |
| Sound | Leith Stevens | Original Music Composer |
| Writing | Mel Dinelli | Theatre Play |
| Editing | Paul Weatherwax | Editor |
| Costume & Make-Up | Mel Berns | Makeup Artist |
| Costume & Make-Up | Michael Woulfe | Costume Design |
| Art | Albert S. D'Agostino | Art Direction |
| Sound | Clem Portman | Sound |
| Art | Darrell Silvera | Set Decoration |
| Production | Mel Dinelli | Associate Producer |
| Costume & Make-Up | Larry Germain | Hairstylist |
| Sound | John L. Cass | Sound |
| Art | Al Orenbach | Set Decoration |
| Art | Alfred Herman | Art Direction |
| Sound | C. Bakaleinikoff | Music Director |
