Davide, a good kid with the eyes of a child and the body of a grown man, is kidnapped one night and locked inside the dark trailer of a truck. He becomes a prisoner of a mysterious organization that forces him to fight, bare-handed, in brutal underground matches that can end only one way: the death of one of the two fighters.

Simone Segre, a renowned surgeon of Jewish origins, lives in a city in the north-east of Italy. A quiet life, an elegant apartment and no connection with his past. One day he finds himself assisting a man victim of a hit and run accident. But when he discovers a nazi tattoo on his chest, Simone abandons him to his destiny. Filled with guilt, he ends up tracing the man’s family: Marica, the eldest daughter; Marcello, a teenager plagued with racial hate; and little Paolo. The night will come when Marica knocks at Simone’s door and unknowingly asks for payback.