 As a doctor and his wife are preparing for dinner, the wife receives a visit from a man whom she knew well when she was much younger. Their familiar reminiscences with one another arouse the doctor s jealousy, but he allows the friend to join them for a lobster dinner, and to stay for the night. But meanwhile, a pair of burglars are casing the doctor s house. As the married couple and the friend finish their dinner and prepare to go to bed, they little expect the tumultuous night that lies ahead of them.