Grace is a religious woman who lives in an old house kept dark because her two children, Anne and Nicholas, have a rare sensitivity to light. When the family begins to suspect the house is haunted, Grace fights to protect her children at any cost in the face of strange events and disturbing visions.
Mommy's boy Juantxo is engaged. Dragged to the party by his friends Konradin and Paco, he loses his expensive wedding ring inside the body of a prostitute. Mafioso whorehouse owner Villambrosa finds the ring. Meanwhile Villambrosa's rival gangster Souza sends femme fatale Fatima to check things out. Juantxo and his friends are trying to get the ring back and in the process get involved in the war between gangs.
A group of parishioners die poisoned upon receiving communion, during the investigation of the event the priests of the parish begin to have visions. Everything rushes when the dead are resurrected in the autopsy room, these strange events seem to be related to an old book enacting a new religion.
