With Conan's help, Det. Takagi gets his man. But can he get to the marriage bureau in time to stop Sato?; Rachel and Serena, accompanied by Richard and Conan, travel to a mountain inn with a reputation for having special powers to inspire romance. But the inn has another legend, that of a ghost who kills and leaves chocolate hearts on the victim.; Using Richard as a surrogate, Conan implicates the murderer, and by accident draws a confession about a previous murder.; The Junior Detective League assist a man in locating his deceased wife's missing watch, only to encounter a murder in his apartment during the search.; Conan sets up an elaborate demonstration to implicate the murderer.; While dining at the mall with Rachel, Serena and their teacher Jodie Santemillion, Conan and the others experience a power failure. When the lights come back up, a man is found murdered by the escalator.; Conan, using Jimmy's voice, phones Det. Takagi and tries to help him solve his case so he'll be able to stop the wedding agreement.; With most of the clues obliterated by a snow storm, Conan and Richard must depend upon a roll of film in the victim's camera for leads.; The innkeeper's dog leads Conan to the clue that solves the mystery.; Conan suspects the apartment owner of committing the murder, but can't prove it.; While the police investigate the case, Miss Santemillion gives Conan a subtle nudge toward the truth, and drops a hint that his secret identity isn't as secure as he thinks it is.