Kogoro recieved a strange letter from a man named Keiji Asoh, asking him to investigate something on Tsukikage Island. Kogoro, Conan, and Ran go to the island to only discover that Keiji Asoh had died 12 years ago.
Part 1
Suicide? (Past)
Location:Keiji Asoh's house on Tsukikage Island
Victim:Keiji Asoh and his family
Cause of death:Burning
Keiji Asoh killed his family, set his house on fire, and played Beethoven's Moonlight Sonata as his house burnt around him.
They then meet Narumi Asai, who told them where to meet the mayor. At the community center, they discovered a room with a piano, where the former mayor was found dead two years ago.
Murder? (Past)
Location:Community center piano room on Tsukikage Island
Victim:Isamu Kameyama
Cause of death:Heart attack
Two years ago, Kazuaki Hirata heard the Moonlight Sonata playing from the community center and discovered the body of the mayor slumped over the piano. Although he died from heart attack, the similarity to the death of Keiji Asoh caused the islanders to think the piano has been cursed.
While the group are waiting outside, suddenly the first movement of Moonlight Sonata is played, and Hideo Kawashima was found dead in the piano room.
Murder
Location:Community center piano room on Tsukikage Island
Victim:Hideo Kawashima
Age:56 years old
Cause of death:Drowning
Suspects:Masato Shimizu, Kazuaki Hirata, Shuichi Murasawa, Reiko Kuroiwa, Ken Nishimoto, and Narumi Asai
Hideo Kawashima's sodden body found slumped over the cursed community piano as the first movement of Beethoven's Moonlight Sonata played in the background. Water marks show the body had been dragged to the piano through a back door in the piano room which leads to the sea.
Conan then realized that the murder will happened again, and they decide to sleep at the piano room, along with the policeman and Narumi Asai.
Megure arrived the next day and start intrograting the suspect. While intrograting Reiko, the second movement of Moonlight Sonata is played, and Tatsuji Kuriowa was found dead at the broadcasting room.
Murder
Location:Community center broadcasting room on Tsukikage Island
Victim:Tatsuji Kuroiwa
Age:56 years old
Cause of death:Stab wound
Suspects:Masato Shimizu, Kazuaki Hirata, Shuichi Murasawa, and Ken Nishimoto
Tatsuji Kuroiwa was found stabbed in the broadcasting room. The body was discovered by Ken Nishimoto soon after the second movement of the Moonlight Sonata began playing over the sound system. At the dead man's feet is sheet music inscribed in blood.
Part 2
Attempted Murder
Location:Community center piano room on Tsukikage Island
Victim:Shuichi Murasawa
Age:27 years old
Injury:Blunt Force Trauma
Suspects:Kazuaki Hirata
When the gang returned to the city hall after the second murder, there was someone in the piano room who jumped out the window and Murasawa was found unconscious on the floor.
Murder
Location:Community center storage room on Tsukikage Island
Victim:Ken Nishimoto
Age:55 years old
Cause of death:Hanging
Suspects:Masato Shimizu, Kazuaki Hirata, and Shuichi Murasawa
Ran found Ken Nishimoto's hanged body in the storage room. At his feet was coded sheet music purporting to be his will. Although it wasn't playing, the third movement of Moonlight Sonata was recorded on the tape cassette nearby.
