Der Spalter.

Four neighbors, one boss, and a fateful party. The harmony between the friendly couples Bianca/Oliver and Dila/Simon is put in danger when Oliver's boss Lars invites himself to a barbecue party. With dangerous charm and amusing intrepidity, Lars pushes the situation to such an extent that the two couples begin to question the foundations of their lives and fall into actionism. Until the pressure turns into counter-pressure and Lars himself becomes a target.