Ep. 604: Investigation into double murders within sealed rooms and linked threatening messages
Aired on February 5, 2011Filler

604
Police are investigating two separate murders that occurred inside sealed rooms. During their inquiry, authorities uncover that other individuals have been receiving threatening messages. Investigators suspect that the sender of these messages is likely the same person responsible for the killings. The case involves connecting the isolated incidents of homicide with the pattern of intimidation to identify the perpetrator behind the crimes.
Episodes
- Ep. 600 · Kogoro and friends investigate a murder at Koura Inn linked to a kappa legend.
- Ep. 601 · Conan exposes Rokuro Tokubi as the murderer of Banzo using a water bottle trick
- Ep. 602 · Poisoning incident involving tennis player Takao Gotou and suspect Sonoko
- Ep. 603 · The Seance's Double Locked Room Mystery (First Locked Room)
- Ep. 604 · Investigation into double murders within sealed rooms and linked threatening messages
- Ep. 605 · The Seance's Double Locked Room Mystery (Opening of the Locked Room)
- Ep. 606 · Juror Sumiko Kobayashi faces courtroom confrontation in the fourth installment of the series
- Ep. 607 · Sumiko Kobayashi's Courtroom Confrontation IV Part 2
- Ep. 608 · The First Part of the White Day of Betrayal