Tony quiere aprovechar la celebración de las 24 Horas Motociclistas de Montjuïc para llevar a cabo un robo perfecto de que obtendrá mucho dinero. Para llevarlo a cabo cuenta con la complicidad de Pedro, un corredor que aspira a pasar al nivel profesional. Todo es planeado minuciosamente, pero en el último momento se comete un crimen y Pedro queda encerrado en la casa de la víctima sin poder salir al haber sido cerrado con llave el portal que da a la calle. La única posibilidad de ayudar a Pedro está en que Tony consiga una copia de la llave que lleva consigo Carmen, la joven que cuidaba a la víctima, antes de que ésta vuelva al domicilio.

The film plunges into the intrigue of a love triangle in which is involved a former actress who has a relationship with her husband, a film producer, her lover, the screenwriter of the films he produces and a criminal lawyer.

Felipe, an aging intellectual, is now confined to a wheelchair after an accident and finds solace in secretly watching his young wife Simona with her lover Mirella through a one-way mirror, happy at the spectacle itself, the fact that she is contented, and the feeling that there is love and harmony in his household. Unfortunately, this peaceful situation is disrupted by the arrival of Felipe’s son Luis.