The lives of Jack and Grace Endel—who have recently become husband and wife—seem ideal. Jack is a passionate lawyer devoted to his profession and who has never lost a case. Grace is a happy housewife and perfect guardian of their home—she cooks wonderfully and takes skillful care of the garden. It seems like they have everything. Their dinner parties are hosted at the highest level, their house is cozy and impeccably ordered… But what happens in it when the front door closes after the last guest?