The screenplay is Haruhiko Arai of "Tragedy of W" and "Revolver". The man is a detective who doesn't take on anything other than background checks for marriage and looking for cats. One day, a request for a job that belongs to him comes in. It is from Masako, a married woman who suspects her husband of having an affair.

その男は、結婚の身元調査とネコ探し以外はなんでも引き受けるというしがない探偵。ある日、彼のもとにある仕事の依頼が舞い込む。それは、夫の不倫を疑う人妻、雅子からのもの。しかし、やがて探偵はその雅子と肉体関係を持ってしまう…。