A história real do militante, assaltante de bancos e anarquista Salvador Puig Antich (Daniel Brühl), integrante do grupo Movimiento Ibérico de Liberación, cuja execução em 1974, a última realizada na Espanha com o método do garrote, instalou uma polêmica que ajudou a decretar o fim da ditadura franquista e o retorno da democracia ao país.
Laura is a fifteen-year-old teenager who receives a letter from her mother, of which she had no news a decade ago. Laura decides to try to go to Holland to meet her, in need of answers and alternatives to the hostile environment that surrounds her. For that, he will have to face Angela, his older sister, a young policewoman who, as a child, was forced to take the reins of the family when she was orphaned. Angela will try, by all means, to keep Laura with her and not be alone. Little by little the violence that surrounds him will make him lose control.
