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.

In the darkness of a gothic night, two knights engage in a deadly duel, illuminated only by the mysterious light of a lantern. A noble lady, confined in a castle, has woven a mysterious connection with the contenders. Supernatural forces and inexplicable events will determine the fate of the duelists in a night of horror.

Filmed in Cordoba, Granada, Seville, and Toledo, this documentary retraces the 800-year period in medieval Spain when Muslims, Christians, and Jews forged a common cultural identity that frequently transcended their religious differences, revealing what made this rare and fruitful collaboration possible, and what ultimately tore it apart.