An international criminal arrives in London, and a detective is anxious to pin something on him for some unprovable murders of former lovers. The villain starts to suspect servants and henchmen of being a police spy known as "Number Six".

A falling-out between thieves over the proceeds of a stickup results in several deaths and a priest being marked for murder because of a confession he receives from one of the gang members.

An American ex-GI takes a job as a truck driver to support his British war bride Connie. It isn't long, however, before Harry is blackmailed into joining a smuggling operation run by a conniving criminal.

Jim Dixon feels anything but lucky. At the university he has to do the bidding of absent-minded and boring Professor Welch to have any hope of keeping his job. Worse, he has managed to get entangled with unexciting but neurotic Margaret Peel, a friend of the Professor's. All-in-all, the pub is the only friendly place to be. His misery is completed at a dreadful weekend gathering of the Welch clan by the arrival of son Bertrand. Not so much that Betrand is loud-mouthed and boorish - which he is - but that he has as companion Christine Callaghan, the sort of marvellous and unattainable woman Jim can only dream about.

Young blonde woman seems to destroy everyone she comes in contact with.