The Head of Janus (1920)

In a shadowy corner of 1920s London, the unassuming Dr. Warren stumbles upon a peculiar bust of Janus, the Roman god of duality, in an antique shop. Captivated by its haunting allure, he purchases it as a gift for his beloved Jane. Her fearful rejection of the bust forces Warren to keep it, unknowingly sealing his fate. The artifact soon reveals its dark power, triggering a terrifying transformation in Warren, who becomes the malevolent Mr. O'Connor, a creature of pure evil.