Spain, 1970s. A Clockwork Orange, a film considered by critics and audiences as one of the best works in the history of cinema, directed by Stanley Kubrick and released in 1971, was banned by the strict Franco government. However, the film was finally premiered, without going through censorship, during the 20th edition of the Seminci, the Valladolid Film Festival, on April 24, 1975. How was this possible?

Diego has just been voted best young player in Europe and at the age of 20 he is on his way to making his team, Atlético de Madrid, champions of La Liga. But his impulsive and conflictive character makes the club, fed up with his excesses, hire Álex, a withdrawn and lonely psychology professor, to improve his behaviour. The two will have no choice but to learn to understand each other.