سال های میلادی 1942

The aunt of Alfred Puc, a meek tax-collector in Paris, dies while riding in a moving van. The driver, not wishing to be bothered by a police interrogation, hides her corpse in a cupboard before notifying Alfred. But the van is stolen. Alfred, being the heir of a rich lady, begins a frantic search to locate the missing van and the cupboard because one can't claim an inheritance if there is no 'corpus delecti.' In his search, he gets caught up in an underworld web and finds the body of a murdered gangster in his room. He finally locates the cupboard but promptly loses it again. But, wait, it isn't "finis' time, yet.

Working for the British government, Sherlock Holmes manages to spirit Dr. Franz Tobel out of Switzerland and into England before the GESTAPO are able to get to him. Tobel has devised an immensely accurate bomb site and while he is willing to make it available to the Allies, he insists on manufacturing it himself. Soon however, he vanishes and it is left to Homes, assisted by the bumbling Dr. Watson, to decipher a coded message he left behind. Holmes soon realizes that he is up against his old nemesis, Professor Moriarty.