What, exactly, makes us afraid? Is it monsters, gore, the unknown? Perhaps it's a biblical sense of malice, lurking unnoticed in the corners of horror films. Holy Writ attempts to ward off aliens, ghosts, witches, psychopaths and demons, yet it often becomes a source of evil itself. Looking first at Psycho (1960) and continuing through 2017, this book analyzes the starring and supporting roles of the Good Book in horror films, monster movies and thrillers to discover why it incites such fear. In a culture with high biblical awareness and low biblical literacy, horrific portrayals can greatly influence an audience's canonical beliefs.