19-year-old private detective Rena is assigned to train the clumsy new hire Sato. After Sato is attacked on a job, they take shelter in a nearby restaurant, where owner Taeko asks them to investigate an odd taxi driver she knows named Odokawa...
We're going to film evidence 
of them entering the love hotel,
سنصوّر دليلاً يُثبت دخولهما معًا إلى فندق حبّ
Wir machen Fotos,
wenn sie ins Love Hotel gehen
Dobbiamo raccogliere delle prove
di loro che entrano nel love hotel,
Vamos filmar os dois entrando no motel,
Нам нужно добыть улику — запись того,
как они входят в любовный отель,