Spain. Year 1692. The Saint Inquisition is slowly declining and, as a reaction, its servants are more cruel than ever. An inquisitor has been looking for a perfect torture device able to grasp the purest face of pain and show the world how wrong it is to serve de Devil. "Facies", the new invention of an engineer, is a terrifying torture chair bound to success. But the designer's daughter, Elena, has different plans.
Who breaks the rule shall take responsibility for it. There is a superstition in Korea that no one should visit a wake when there’s a baby under three weeks among the family members; but Woo-jin doesn’t believe it. He receives a text message that his ex-girlfriend passed away, and despite his wife’s dissuasion, he goes to the wake and mourns for her. After that day, strange things start to happen, and his baby becomes sick without reason. His wife now demands him to transfer this misfortune to other people by stealing a few things- two things from any store, one thing from a stranger.
Manuel (Zorion Eguileor) has to move into the house of his son Mario (Gustavo Salmerón) and his family after a terrible event ends the life of his old wife. Little by little, reality imposes itself: something incomprehensible happens to Manuel. The voices that he claims to hear, the presences with which he claims to speak. Lena (Irene Anula), Mario's wife, wants to throw him out of the house: she is sure that something terrible will happen. Only Naia (Paula Gallego), the teenage daughter, is on his side, but even she begins to doubt as strange phenomena occur around her increasingly disturbed grandfather. It's the hottest summer in history, a countdown has begun and it's too late to stop it.
He tells Valeria's story, a woman who has been trying to have a child for some time. Suddenly, the same night in which she finally confirms her pregnancy visits her a strange presence. From that moment on, the monstrous creature persecutes her by keeping her pregnancy, her couple and the life of her future baby in a risky.