A strange dynamic unfolds in a secluded, decadent estate where an emotionally disturbed teenage boy (João Arrais) and his sister (Júlia Palha) live. In the shadow of their absent mother (Carla Maciel), the boy becomes obsessed with punishing his mother's handsome lover (Matthieu Charneau). What begins as a hostility and power game escalates into a boundary-pushing, fetishistic sexual triangle as jealousy, punishment, and taboo desire blur between the young boy, the mother's lover, and the sibling bond.