In Mexico, a financier on the run poses as a man he just murdered, only to find out that the man was also a murderer.

Bertrand, an accountant employed by a large London firm, is called to the office of the Managing Director, Dreuther, to explain a mistake in the accounts. Dreuther is highly impressed by the young accountant's skilful explanation of the error and, hearing that Bertrand is soon to marry his spirited young fiancée, tells him to spend the honeymoon not in Bournemouth, but Monte Carlo at the company s expense! However, events in the fabulous Mediterranean paradise do not work out quite as Bertrand had envisaged...

Visiting in England, an American surgeon Doctor John Marlowe is decoyed to a middle European country, and discovers the operation he is to perform is on the Vosnian dictator. When the latter dies, he is replaced by a look-alike, but Marlowe then becomes the object of a shoot-to-kill, vicious pursuit by the secret police of Vosnia since it is vital to Vosnia that the dictator's death does not become known. Fleeing, he seeks help from an actress, Lisa Robinson, and the two are harried across the countryside.