When a young woman is savagely assaulted, the four members of the Jansen family find themselves increasingly involved. All four have secrets they keep from the police - and from each other. Johann is a disgruntled husband and planning to have an affair with a colleague. His wife, Sue, is a new member of The Society of Unexampled Brilliance and allowing its ‘self-improvement’ cause to take over her life. Rebecca, their daughter, is a teacher who moonlights for a private investigator, trapping adulterous men (though her own love life would come as a surprise to her targets).