A British physician stands trial for murdering his wife after he and his mistress are captured while fleeing to Canada.

A playboy tries to recruit a gang, who include an American who needs cash to satisfy his wife's expensive tastes, and an old time expert cracksman, to rob a foreign embassy's safe, but trouble starts when the plan begins to go wrong.

Augie comes out of prison and finds his old vice racket has been taken over by the sinister Gollar, so he dreams up a new scam.

A British agent's son is kidnapped and held for a ransom of diamonds. The agent finds out that he can't even count on the people he thought were on his side to help him, so he decides to track down the kidnappers himself.

A small time thief is recruited by a mobster to help with the racketeering. He doesn't like the job, but with the mob on his back, a femme fatale in his bed and a sick friend to care for, he will have to keep all his wits about him.

A successful London ad-exec hires a beautiful Hungarian girl to pose for some modeling shots, little realising that she has overheard an assassination plot and is now being hunted by some dangerous killers.