An aristocratic vampire swears an oath to kill the enemies who killed his father. In order to terrify them even further, he warns each one when he is coming for them.

Antonio dives for sponges which are sold by his sweetheart Rossana. One day, the escaped prisoner José-Luis appears and is hid by his friend Antonio. Although José-Luis does not want to betray his friend, a love affair with tragic consequences between him and Rossana develops. The Net was one of Mexico's entries at the 1953 Cannes Film Festival.

A professor and a vampire hunter join forces to destroy the murderous vampire Nostradamus and his minions.