Marfil, daughter of a powerful Spanish businessman, sees her life in New York turned upside down when she is kidnapped and released without explanation. Her father hires Sebastian Moore as bodyguard and, forced to spend every minute together, an inevitable attraction ignites in a world where nothing is as it seems.

Most residents of Pedraza, a remote town in Spain plagued by inexplicable, demonic events, have lost their minds and are confined to a psychiatric hospital. Elena lies comatose in a Madrid hospital bed; Paco, shattered by remorse, tries to take care of her. As horror intensifies around them, our group of heroes must face a mysterious new enemy – someone so perverse that even the devil fears him.

Spain, 1950s. Montse's agoraphobia keeps her locked in a sinister apartment in Madrid and her only link to reality is the little sister she lost her youth raising. But one day, a reckless young neighbor, Carlos, falls down the stairwell and drags himself to their door. Someone has entered the shrew's nest... perhaps he'll never leave.