Nefarious (2023) is a psychological horror-thriller centered on Dr. James Martin, a psychiatrist called to evaluate a convicted serial killer named Edward Wayne Brady on the day of his execution. Edward claims to be possessed by a demon named Nefarious and warns Dr. Martin that he will commit three murders before the day ends. As the session unfolds, Dr. Martin finds himself in a battle of wits, questioning whether Edward is truly insane or if there is a darker, supernatural truth at play. The film delves into themes of morality, free will, and the nature of evil.