Professional killer Kersten arrives in England and is hired by Donald Edwards to murder his wife Helene. But Helene's lover Robert Vaughan discovers the plot and he trails Kersten and Edwards to a country cottage.
| Actor | Role |
|---|---|
 Michael GoughDonald Edwards | Donald Edwards |
 Erika RembergHelene Edwards | Helene Edwards |
 Hans von BorsodyKersten | Kersten |
 John JustinRobert Vaughan | Robert Vaughan |
 Paul Whitsun-JonesPhillips | Phillips |
 Vanda GodsellBetty Conlon | Betty Conlon |
 Anneke WillsJacqueline | Jacqueline |
 Jerold WellsPolice Inspector | Police Inspector |
| VVictor CharringtonBarman | Barman |
 Ray SmithChauffeur | Chauffeur |
| NNorma ParnellGuest at Party | Guest at Party |
| OOdette NashGuest at Party | Guest at Party |
 Gabriella LicudiGuest at Party | Guest at Party |
| LLuanshya GreerGuest at Party | Guest at Party |
| RRichard BidlakeGuest at Party | Guest at Party |
| MMike HallGuest at Party | Guest at Party |
 Robin PhillipsGuest at Party | Guest at Party |