Marie Campenhausen feels neglected by her husband Ulrich, who is constantly on business trips, and has therefore had an affair with the architect Werner Donatus for a long time. When she wants to go on a trip abroad with Werner, Ulrich suddenly comes home unexpectedly from a business trip and suspects Werner, who appears shortly afterwards, to be a rival. The conversation between the men, which Marie tries to portray as a business meeting, is icy. Ulrich says through the flower that he knows about the relationship, but after Werner leaves, Marie cannot show any love, so that she flees out into the winter of Regensburg. On a street corner that, as if by magic, becomes a dead end, she meets an old woman who shows her three versions of her fate in a shard of glass.