As Honma investigates her circumstances, he finds that the name "Shoko Sekine" actually belongs to someone else other than Kurisaka's fiancée, and that the latter may have murdered the former to achieve this.

At one point Isaka, Honma's friend and housekeeper, talks about a flaming wagon that takes sinners to hell, citing Japanese Buddhist mythology.

In 1994 a drama special was made, starring Kunihiko Mitamura as Honma, Yoko Moriguchi as the real Shoko, and Naomi Zaizen as Kyōko.

Another version was made in 2011, starring Takaya Kamikawa as Honma, Tomoko Tabata as Shoko, and Nozomi Sasaki as Kyōko.

Unlike in the original Japanese book, where Jun walks out on Honma and refuses to believe he has been tricked (thereby not playing a role in most of the story), Mun-ho helps out Jong-geun in the investigation, despite their differences.