A victim's boyfriend sneaks into a blackmailer's flat to sort him out, but another man's already there, and both don't realise the crook has been murdered before they got there. The police soon arrive, tipped off in advance.
| Actor | Role |
|---|---|
 John Le MesurierWarden | Warden |
 Jack WatlingFrank Leamington | Frank Leamington |
 Bernard ArchardTrainer | Trainer |
 Barry KeeganCharles Berry | Charles Berry |
| AAnn BellSusan | Susan |
 Campbell SingerHurley Brown | Hurley Brown |
 Charles Lloyd PackMiller | Miller |
 David BauerLouba | Louba |
 Russell WatersClerk of the Court | Clerk of the Court |
| GGeorge BishopJudge | Judge |
 Gerald SimUniformed Doorman | Uniformed Doorman |
| AAndre Mikhelson1srt Croupier | 1srt Croupier |
| MMonti DeLyle2nd Croupier | 2nd Croupier |
| AAdrian OkerWaiter | Waiter |
| GGordon PhillottWaiter | Waiter |
| JJohn WilderRanley Headmaster (uncredited) | Ranley Headmaster (uncredited) |