Northern Spain, October 1944. Several groups of guerrilla fighters, former Republican soldiers exiled in France after the end of the Spanish Civil War, infiltrate the country in order to provoke a popular uprising against General Franco's dictatorship.

A group of politicians are preparing to take a course on Effective Communication. It is the first day of class, and Manuel, the teacher, starts a game with all of them that will have totally unexpected consequences.

At 18, Claudia doesn't want to be a hero. Her mother's illness erupts like a silent storm, forcing a redefinition of roles in a family long estranged. Torn between the duty to care for her mother and the desire to live like any other girl her age, Claudia searches for a way to navigate this new reality, which will transform the bonds between the entire family.