Plot synopsis: Gisela is a young wife and mother, living in a working class German Housing Scheme. She is a supermarket cashier, her husband a delivery driver. The marriage is stale but together they are working their way up into the middle class. George and Gisela evidently knew each other as teenagers. They live on the same scheme and George introduces her to his friend Paul. There is instant mutual attraction. Gisela spontaneously goes to a party that they invite her to that evening, where she and Paul begin a sexual relationship.