Solicitor Alan Phipps formulates a plan to blackmail his wealthy and unfaithful wife, Yvonne, and at the same time, get revenge against her boyfriend, John Brodie, by setting him up to appear that he is the blackmailer and for Yvonne to kill him.
| Actor | Role |
|---|---|
 Maxine AudleyYvonne Phipps | Yvonne Phipps |
 Richard LeechAlan Phipps | Alan Phipps |
 Alex ScottJohn Brodie | John Brodie |
 Dudley FosterPeter Dexter | Peter Dexter |
 Patrick MageeInspector Cummings | Inspector Cummings |
 Virginia WetherellBrenda | Brenda |
| BBarbara RoscoePretty Girl Skater | Pretty Girl Skater |
 Frederick PiperSiddall | Siddall |
| JJune MurphyJudy | Judy |
 Alec BregonziMax | Max |
| KKeith SmithPorter | Porter |
| PPeter TorquillSgt. Walters | Sgt. Walters |
 Nancy NevinsonElsie Siddall | Elsie Siddall |
 William DysartFirst Skater | First Skater |
| AAnne GodleyWardress | Wardress |
| MMaris TantGirl Skater | Girl Skater |
| MMarian HortonWaitress | Waitress |