At the manor house of a woman obsessed with time, Conan discovers the secret of an old clock. Then a noodle shop that advertises ramen to die for makes good on its promise...with grave results! Meanwhile, there's a new teen detective in town. The mysterious Sera has Conan's deductive genius and Rachel's skill at martial arts! Can Conan and Rachel solve a case at a haunted hotel before their new rival, or have they been out-sleuthed at last?