A devoted Catholic priest volunteers for a medical experiment aimed at developing a vaccine for a deadly virus. As a result of the experiment, he contracts the disease and dies but is miraculously revived by a blood transfusion that turns him into a vampire. Struggling with his newfound thirst for human blood, he wrestles with his faith and morality. Concurrently, he reconnects with a childhood friend and becomes involved with his friend's wife, leading to a complex and morally ambiguous relationship that challenges his principles and loyalties. The priest's internal conflict deepens as he grapples with his dual desires for piety and primal urges.

The situation escalates when the priest's love interest starts revealing darker aspects of her personality, leading them both down a path of violence and deception. The priest finds himself increasingly entwined in a dangerous web of lust, guilt, and the supernatural quandaries of his vampiric existence. His need to protect loved ones from his curse and internal struggle exposes the fragility of human relationships when distorted by otherworldly forces. In his quest to reconcile his humanity and monstrous nature, he faces harrowing choices that test the boundaries of love, sacrifice, and redemption.