While out on their rounds one day, Tsugumi and Hisui learn of the existance of a book written by a prostitute from Yokohama's redlight district. Hisui seems especially desperate to get his hands on this book and when Tsugumi learns the reason why she becomes determined to help him. When Tsugumi discovers that Shiginuma Shouko, wife of the shady owner of the Nachtigal dance hall, she finds herself stepping back into potentially dangerous territory alone.
A series of murders has 
claimed women's lives.
.سلسلة من جرائم القتل أودت بحياة نساءٍ صغيرات
Ein Serienmörder hatte Jagd
auf junge Frauen gemacht.
Asesinaron en serie a varias señoritas.
Asesinaron en serie a varias mujeres.
Un tueur en série sévit en ville.
Sospettato di essere coinvolto
 in una serie di omicidi
Uma série de homicídios
tirou a vida de moças.
Одна серия убийств
унесла жизни девушек.