John Constantine is a cynical Los Angeles exorcist condemned for a suicide attempt to burn in hell, who hunts demons infiltrated in the human world in the hope of buying his redemption. When detective Angela Dodson asks for his help in clarifying the apparent suicide of her twin sister, the two uncover a supernatural conspiracy that breaks the agreed balance between Heaven and Hell. Amid blessed bullets and literal visits to the netherworld, Constantine gambles his soul in a war mortals never suspect. A horror-fantasy thriller inspired by the comic 'Hellblazer', with Keanu Reeves as the tormented occultist.