The 60s, a summer in the Ruhr area. The war is over. With coal and steel, the Ruhr is responsible for the economic miracle and the progress of the entire republic. The guest workers have already arrived and corner stores are still profitable; smoking is not considered a health hazard and currywurst is considered nutritious. While the men work underground, the boys pass their time with cigarettes, beer and obscenities. But 12-year-old Julian is different. He lovingly looks after his little sister, makes sandwiches for his father and serves at mass on Sundays. He observes what is happening around him with curiosity. He is particularly taken with the precocious neighbor's daughter Marusha, who fascinates more than just the boy. When the latent erotic tension suddenly escalates on a hot summer's day, Julian and his family's lives are thrown off course. As a result, he packs his things, runs away from home and confides in the priest. But is it even possible to confess someone else's sins?