Kogoro goes to the Nonogaki Real Estate office to visit his drinking buddy Mizusawa, who claims to have information about the cursed Tears of Borgia, but gets caught in a fire. He is taken to the hospital, where he is informed by Inspector Megure that Mizusawa died in the fire. Mizusawa loves to take photos, but there wasn't a single one remaining on his phone. Conan deduces that there was a photo on the phone that the culprit didn't want seen. The next day, Conan and Professor Agasa visit the Kanoya family mansion to view the final scene of the drama "I Killed Them" before heading to the dried up dam where the body was found. Having arrived at the truth behind the two 40-year-old cases, Conan gathers everyone at the mansion so the Sleeping Kogoro can solve the two mysteries...

Kogoro appears as a guest on a radio show where he discusses the topic of an obnoxious woman living in the apartment above the listener's. Several hours later, apartment resident Kumi goes to yell at her downstairs neighbor Towako. Kumi is furious she was mocked on a radio show, and the two get into an argument. The next morning, Towako's body is discovered, and the police suspect Kumi killed her. Towako is the estranged wife of radio producer Manda. The police believe Manda is also involved in the case, and...