"The Treatment" tells the story of isolated patient Linus. More and more a rigid routine consisting of meals, exercise, lulling music, irritating smoke and examinations by his only attachment figure Dr. Frei causes him suffering. One day Linus notices the massive door to his room has been left ajar and he takes the chance to escape. What he sees outside makes him question: Is he really who he believes he is?

Carla Michelsen has had enough. Each of her three children will get 250,000 euros if they sign a contract she’s drawn up to disown them. Will they go for it? Philipp, the youngest, desperately needs the money, as he’s lost a fortune through speculation. Rita takes a while to decide, but eventually also accepts this sudden break. The only one who vehemently resists it is Doro, the middle child; she values the family unit. While the siblings can’t handle staying with their mother and prefer to stay in a hotel, Doro’s daughter, Joe, stays with her grandmother. The two get along well. When Joe confesses to being pregnant, however, Carla straightforwardly advises the granddaughter to have an abortion. Joe is horrified. In a rash move, she takes off with some of the money — with unforeseen consequences.