Dry Rot by John Chapman was the second of the five famous Whitehall farces, presented at the Whitehall Theatre in London in the 1950s and 1960s under the management of comic actor Brian Rix, who also appeared in them.

It deals with a crazy, but very likeable gang of bookies who, in order to be near the racecourse, are staying at a country hotel run by a retired colonel and his wife and daughter. Secret rooms, sliding panels, mistaken identity and a nice little bit of romance are some of the main ingredients of this very racy and slick farce.