In a world where the supernatural and the earthly collide, a detective is forced to turn to a cynical exorcist named John Constantine, who has spent his life battling demons and seeking redemption for his own sins. Constantine, who can see beings from beyond, has been dealing with a terminal illness that pushes him to confront the hell of his own mistakes. Everything changes when the sister of a police officer, Angela, suspiciously commits suicide, prompting the detective to seek the truth behind her death. Soon, she discovers that dark forces are at play and that her sister was not simply a victim.
As Constantine and Angela become embroiled in a dangerous hunt for hidden truths, they face demonic powers that seek to unleash chaos in the human world. With the intervention of a fallen angel and disturbing visions, Constantine is forced to confront his own past while trying to save Angela and prevent an impending apocalypse. The plot oscillates between supernatural violence and moral dilemmas, bringing to light the complicated game between good and evil. As time goes on, Constantine realizes that his decisions will not only affect his own existence, but will also define the future of humanity. The struggle for redemption and personal purpose becomes the central axis of this intense narrative filled with unexpected twists.