Lucas is a widower who works as a clockmaker. He has a daughter who lives in a village in northern Spain. One day his daughter go to school as each morning and he opens his shop. Aafter, a neighbor comes running to tell him that his daughter just died as an unfortunate victim of a terrorist attack that has been perpetrated against the car of a minister on official visit. Shattered, Lucas thinks that this is due to serious political tension that is living that part of the country, making a terrible emotionally unbalanced resolution: life threatening to the Head of State.

Lucas es un relojero viudo con una hija que vive en un pueblo del Norte de España. Un día la hija se despide para ir al colegio como cada mañana y él abre su tienda. Poco después, una vecina viene corriendo para avisarle que su hija acaba de morir víctima de un desgraciado atentado que un grupo terrorista ha perpetrado contra el coche de un ministro en visita oficial. Destrozado, Lucas piensa que todo esto es debido a la grave tensión política que está viviendo esa zona del país; emocionalmente desequilibrado toma una terrible resolución: atentar a la vida del Jefe del Estado.