When Germany invades Holland in 1940, a British intelligence officer and two Dutch diamond merchants go to Amsterdam to persuade the Dutch diamond merchants to evacuate their diamond supplies to England.

An escaped killer hides out by forcing a travelling family to take him with them.

Escapee switches identities but finds the new one quite a handful.

Kicked out of Oxford, a junk dealer's son joins a gang of thieves fenced by his father.

The former wife of a criminal moves to a coastal town and takes over the running of a bar known as The Quiet Woman. She becomes outraged when she discovers the previous owner had allowed local smugglers to use it as a base. She soon has become romantically involved with one of the smugglers, which causes enormous problems when a customs officer turns up, followed closely by her former husband.

Special investigator Duke Martin is in London to investigate the authenticity of a rare postage stamp called the Barbados Overplate. Someone is willing to commit murder to get his or her hands on the stamp, which puts a crimp in Duke's efforts to romance every beautiful woman he meets.

An ex-GI wakes up with blood on his clothes in a strange hotel room. He can't remember the night before but he later finds out that a man he got into a fight with earlier in the night was murdered.

When Johnny Matlock whisks away a cold war secret from under the noses of Berlin's top secret agents, his every move is followed when he returns to England. His girlfriend Paula is kidnapped but her handbag is discovered at the scene of the crime by the aristocratic private eye, Duke Martin. Inside it he discovers the secret formula that the agents are searching for and tracks down her sister Paula. As Johnny grows frantic for the safe return of his girlfriend, Duke Martin plays a deadly game of double bluff with the enemy agents.

A chance photograph may reveal a murderer's identity - and someone's after the photographer!

A jeweller is killed in a gang robbery leaving the daughter as the only witness. When the police can't build a case against him she decides to go undercover to infiltrate the home of the killer's brother. Slowly she is drawn into the world of the rival gangs.