Episode

遺書の暗号は殺しの招待状 The cipher of the suicide note is an invitation to kill

Previous: 少年シャーロック現る! 祖父誘拐と開かずの金庫 Boy Sherlock Appears! Grandfather Kidnapped and Unopened Safe
Next: 最終章へ…別れの予感! 最後の晩餐は密室殺人レストラン To the final chapter... a premonition of parting! The last supper is a closed-room murder restaurant

Cast
Dean Fujioka as Shishio Homare
Takanori Iwata as Junichi Wakamiya
Kyoko Hasegawa as Setsuko Andran
Mayu Hotta as Setsuko Andran
Kuranosuke Sasaki as Reiji Eto
Mitsuki Tanimura as Aya Kitayama
Maho Yamada as Kumiko Kogure
Yutaro Goto as Leo
Daichi Saeki as Yuichi Misaki
Yûki Kubota as Masaki Shibata