A prominent politician is preparing to expose a financial scandal. But then a woman who has invested heavily in the shady venture threatens to uncover a damaging secret in the politician's past if he exposes the speculation as a fraud. His problem is compounded by his wife's intolerance of the slightest character flaws.
An operation of counterfeit five pound notes is discovered at a variety theater, leading to murder during the performance.
Rodney Playfair is persuaded, by a promise to meet his gambling debts, to impersonate a manservant named Chapman at his fiancée's house...