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In this British comedy, a barrister badly botches his first case and begins to think he has chosen the wrong career. To assist with their bills, he and his wife sublet their apartment to several people at the same time. To fool them all, the couple pretends to be household servants and throws a dinner party for their guests. The wife then sprinkles sleeping powder into their soup. When the renters awaken, they find themselves in assorted compromising positions. The "servants" then blackmail them for their money. They wind up with a tidy sum of money.