A British Sanitary Engineer, goes on holiday with a set of plans for a new secret weapon which he has mistaken for his new plumbing invention. Everyone is hunting for him, including the Russians. The Russians find him and offer him a job in the Kremlin doing research (on plumbing he believes). He accepts, arrives in Russia and falls in love with Tania, a secret agent. And then discovers the true nature of the plans he is carrying...

A young American accepts a bet to spend a night in a haunted house in Mayfair.

A hated country gentleman is murdered, and the inspector on the case takes the veiwer through his thoughts about the possible murderer and motives as he questions everyone concerned.

Nigel Dennis publishes a scandal magazine. But for each story he writes, he first approaches the person whose scandalous behavior is described (or rather implied, to avoid any libel suit) and says he will suppress the story in return for money. Several of his victims first decide individually to kill him instead of paying, but fail in amusing ways. Then they find that to protect their various secrets they must now join forces for a rather different purpose...

A petty crook gallantly consoles wealthy widows and is doing all right in his chosen profession until he meets and falls in love with a lovely baroness, who knows all about get-rich-quick schemes.