When a ransom bid results in the death of a child, the police have only one lead – the old lady who witnessed the kidnapper using a public phone box. Though her recollection is vague, she volunteers to act as bait for the killer – telling the press that she had seen the kidnapper's face and she waits for him to attack.
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...
