La vida en rojo

In 1960s Spain, amidst university unrest, professors Aranguren, García Calvo, and Tierno Galván are expelled from their posts. Old professor Julio Denis, suspected of collaborating with the police, becomes entangled in a confusing matter that leads to his expatriation. The reconstruction of his life unveils episodes of the anti-franquista struggle, with students taking the lead; one of them vanishes mysteriously after being detained and interrogated at the Dirección General de Seguridad. His grandmother and girlfriend tirelessly search for him, but to no avail. The only person who might shed light on the situation is the commissioner, Ramos.