An up and coming politician is caught in a compromising photograph taken by a maid, who turns out to be part of a sophisticated blackmail ring. When the girl is found murdered, he holds an incriminating old dueling pistol.
| Actor | Role |
|---|---|
 Dawn AddamsMaxine Hagen | Maxine Hagen |
 Michael GoodliffeSir Harold Trevitt | Sir Harold Trevitt |
 Richard ThorpJohn Durran | John Durran |
 Anthony NewlandsLeo Hagen | Leo Hagen |
 Alfred BurkeInspector Waveney | Inspector Waveney |
| MMia KaramPaula Blair | Paula Blair |
 Ellen McIntoshUrsula Clandon | Ursula Clandon |
 Paul Whitsun-JonesCharles Pinder | Charles Pinder |
 Noel HoodLady Clandon | Lady Clandon |
| JJohn MillerLord Clandon | Lord Clandon |
| VVincent HardingDet. Sgt. Holt | Det. Sgt. Holt |
| SSusan DennySusie | Susie |
| JJoyce HemsonLandlady | Landlady |
| BBill WilliamsValet | Valet |
| JJohn DunbarClerk | Clerk |
| SSoong LingBarmaid | Barmaid |
| GGarard GreenRonnie | Ronnie |