The Unicorn

Harriet and Frank Allard have been married for many years Almost twenty years ago Harriet had a love affair with a colleague of Franks Claes von Klitzow who made her pregnant She had a son Christer whom Frank thinks that he is the father of One day Christer reveals that he is going to marry von Klitzows daughter Louise Harriet becomes upset but what will she do Try to stop the marriage by telling the truth which would endanger her marriage with Frank or keep silent which would mean that two halfsiblings married