Alex and his father Erich on the tennis court. When Alex tries to bring up his father's failing business between the games, he hits a nerve, Erich reacts with aggression. Erich now absolutely needs a win. But his ailing stamina thwarted his plans. The frustration over this affects his game more and more. Confronted with the emotional and increasingly physical weakness of the 50 year old, Alex learns to see his father anew and to accept him in his weakness. The roles of father and son are reversed.