Constan Films S.A.

A serpent, created by radioactivity, threatens a Spanish coastal town.

Rare Ramón Larraz thriller in which Teresa Gimpera and her husband get terrorized by a gang of hippies.

Spain 1640, the reverend superior nun Mariana, attends the death of her younger sister, Isabel's husband, who is overcome with hopelessness and heartache. Isabel then kisses and caresses the cadaver's exposed body as if he were still alive. Mother Mariana

Rodrigo Díaz de Vivar, “Mio Cid”, is in love with Jimena, but the Count of Oviedo, his father, challenges him to a duel and is killed. He before him curses Rodrigo, that if he marries Jimena, he will lose his manly faculties. And, in fact, when he gets married, Rodrigo becomes effeminate.