The switchboard operator in an apartment building falls in love with a businessman who lives in the building, whom she has gotten to know only over the phone. When she discovers that the man’s current girlfriend is actually part of a scheme to swindle him out of some mineral rights he owns, she devises a plot to save him and expose the con artists.

When Stephen, the husband of Gerald’s mistress, Claire, discovers a pair of tickets for their planned trip to Venice, Gerald must invent a wife to cover their tracks. He is then forced to hire a woman to play “his wife” when Stephen insists he and Claire accompany them to Venice.