As vet Elena and Mayor Paco investigate the birth of a child, they begin to uncover the troubling past of their newly appointed priest, Father Vergara, and the significance of a coin he has in his possession.

Elena explores Father Vergara's possible connection when a local teenager suddenly disappears; Marquess Roque presents Elena with an enticing job offer; Merche urges Paco to keep his distance.

Elena and Paco discover that a local mirror is haunted, and when Father Vergara spends the night investigating the mirror's trickery, he risks getting swept into its deathly portal.

Father Vergara leaves for Rome to face his painful past, and though he requests a meeting with the Pope, he discovers that Santoro is waiting; someone in Pedraza is about to return from the dead.

Elena's husband miraculously returns after mysteriously disappearing two years ago; Santoro tries to recruit Vergara and offers him unimaginable power.

Vergara flees from Santoro and hides among soldiers and war hospitals in Syria; Elena follows Roque to Paris, but is terrified when the coin finds its way back to her; in Pedraza, Paco is about to resign when a sinister new priest arrives.