Ep. 417: Investigating the mansion workers and a past accident involving a presumed-dead twin
Aired on October 24, 2005

417
The group decides to investigate the four mansion workers alongside an accident that occurred thirteen years ago. Conan deduces that a twin, who was believed to have died long ago, was involved in the events, which explains the fear felt by the manager. Evidence is found on the wristwatch of the dying victim, revealing the specific location where the boat accident took place. This discovery helps clarify the mystery surrounding the past tragedy and the current situation at the mansion.
Episodes
- Ep. 413 · TV Producer Invites Kogoro to Share Stories Before Scriptwriter Joji Dies from Poisoned Coffee
- Ep. 414 · Detective Boys Investigate Yuka's Budgerigar and Suspect Sakaguchi's Poison
- Ep. 415 · The Evil Spirit Appears on An Unlucky Day: The Case
- Ep. 416 · The Evil Spirit Appears on An Unlucky Day: The Suspicion
- Ep. 417 · Investigating the mansion workers and a past accident involving a presumed-dead twin
- Ep. 418 · Detective Boys rent a house overlooking Mouri Agency, uncovering a disguise plot
- Ep. 419 · Investigation into the Murder of Kouji Wanibuchi in Izumo Village
- Ep. 420 · Conan exposes Fujie’s alibi fraud and motive linked to the Eight-Headed Serpent myth.
- Ep. 421 · Detective Boys decode Agasa's letter to find his first love's meeting spot