Police hunt for mental hospital out patient Simon Lacey, who has been unwittingly handing out barbiturates to children as sweets.

A writer, Arnold Reed, goes back to his former boyhood home in the East End, and there, finding it about to be torn down, he revisits his attic room, and stumbles on evidence of the operations of dealers in illegal traffic. He breaks his ankle and has to hide from the criminals, one of whom is a murderer.

Crossroads to Crime is about the investigations of a police constable (Anthony Oliver) who, working undercover without support from his colleagues, confronts and brings down a gang of vehicle hi-jackers.

A Scottish fishing trawler hauls in an unexploded depth charge and a bomb disposal veteran teams up with an inexperienced volunteer to try to defuse is before it destroys the ship.