The episode wraps up the investigation into the Shitara household, a wealthy musical family plagued by "accidental" deaths whenever their heirloom Stradivarius violin is played on a specific birthday. In this finale, Conan unravels a complex web of murder and arson:
: Haga used a clever trick involving a cigarette to start a fire and fake a locked door. He later induced Ayane's fatal fall by switching the real Stradivarius with a fake and using a command stick to create a visual illusion that lured her out a window. Detective Conan Episode 387
: Conan identifies Kyosuke Haga as the mastermind behind the deaths of Genzaburo and Ayane. The episode wraps up the investigation into the
While the murder mystery is compelling, Episode 387 is vital for its contribution to the "Boss' Cell Phone Number Arc". : Conan identifies Kyosuke Haga as the mastermind
Why This Episode Matters (The Black Organization Connection)