In the turbulent Republic era, strange occurrences emerge one after another amid the chaos, and a series of bizarre murders repeatedly throw the entire city into turmoil. At the ever-lively Paramount Ballroom, a spectacular magic performance turns into a deadly trap, with murderous intent concealed onstage and the truth shrouded in mystery. In the deep, secluded old alleyways, rumors spread everywhere, and terrifying tales leave people pale with fear and gripped by panic. In a remote rented room, an even more horrifying case emerges: the bizarre discovery of a woman's nine-headed corpse, surrounded by an eerie atmosphere that sends chills down one's spine at the mere thought of it. Strange murders continue to unfold, each crime scene bloody and uncanny, the clues hopelessly tangled, and every case an unsolved mystery.