Hedonistic modern vet Hubertus Sander was quite happy for years in his affair with adulterous Charlotte, the bored wife of his unsuspecting conservative brother, surgeon Balthasar, the success in their bossy mother's eyes. Braggard words during a fight cause Hubertus to fear Charlotte returned to his brother and feeling free to start another affair with canine patient's trendy Russian owner Anastasia Poplovov. having broken up with Charlotte. Hubertus is puzzled to hear Balthasar cheats on Charlotte, gutted to learn it's with Anastasia. Anniversary plans bring both couples to the family's hunting lodge, were frustrations run high before mother arrives with her lover and things get out of control, even with a rifle.