Police find that everyone had a motive for the murder of a wealthy woman.
| Actor | Role |
|---|---|
 Griffith JonesRobert Ainsworth | Robert Ainsworth |
| UUrsula HowellsLucille Ainsworth | Lucille Ainsworth |
 Honor BlackmanSarah Hayward | Sarah Hayward |
 Ewen SolonDetective Inspector Marshall | Detective Inspector Marshall |
 Carl BernardGilbert Morgan | Gilbert Morgan |
| MMary JonesNella Langford | Nella Langford |
 Philip GilbertJohn Langford | John Langford |
 John Van EyssenClive Franklyn | Clive Franklyn |
| DDoris YorkeLandlady | Landlady |
| HHarry RossBernard Goodman | Bernard Goodman |
| RRobert RaikesDetective Sgt. Berry | Detective Sgt. Berry |
| GGordon PhillottRigby | Rigby |
| VVernon SmytheCol. Jarvis | Col. Jarvis |
| GGerda LarsenBlondi | Blondi |
| BBarry SteeleBarman | Barman |
 Edwin RichfieldPorter | Porter |
| PPhilip JohnsDetective Sergeant (uncredited) | Detective Sergeant (uncredited) |
| JJoe WadhamPolice Driver (uncredited) | Police Driver (uncredited) |