Growing up on the grounds of one of Germany's largest psychiatric hospitals is somehow - different. For Joachim, the director's youngest son, the patients are like family. They are also much nicer to him than his two older brothers, who drive him into fits of rage. His mother, painting watercolors, longs for Italian summer nights instead of constant German rain, while his father secretly, but not discreetly enough, goes his own way. But while Joachim slowly grows up, his world, not only through the loss of his first love, gets more and more cracks...
The twins Cosmo (André Lewski) and Carmen (Sandra Tirre) return to their former childhood home for the first time in 15 years. While Carmen attempts to come to grips with her childhood traumas, her efforts are met with resistance by her brother, who brings along his new girlfriend Marie (Hannah Prasse). After Carmen secretly watches the pair's unsuccessful sex attempt, she offers Marie couples therapy. However, due to their inability to speak openly with each other and the arrival of the mysterious new house resident Heins (Heiko Pinkowski), fateful events are set in motion that allow boundaries to be crossed and old wounds to reopen ...