The children of a a novelist, Nicholas, contract scarlet fever. His wife Anne stays in the house to take care of them, but the house is quarantined by the authorities and Nicholas, not being allowed in the house, takes a room in town until the quarantine is lifted. Lonely, he begins to feel attracted to his illustrator, Esmee. They begin an affair, but soon Nicholas finds that Esmee's expensive tastes are driving him to bankruptcy. His wife finds out about the affair, and devises a plan to teach her husband a lesson and get his mistress out of the picture at the same time.
