Detective File 1: Kindan no Ai
English name: Bondage House
Genres: Hentai
Type: OVA, Episodes: 1
Aired: Jul 29, 1999
Studio: P core
Source: Manga
Rating: Rx - Hentai
Synopsis:
Private detective Takayasu Higishino rescues Ayane from two men who cornered her in an alley. Ayane is startled by Takayasu's appearance, he looks just like her presumedly dead brother Shingo. Shingo's car accident occured under strange circumstances, and Ayane has hired Takayasu to help her find out what really happened. Takayasu suspects Ayane's family maybe involved, so he heads back with Ayane to her family mansion, posing as Shingo, hoping to uncover the truth.

(Source: ANN)