Mature Woman: Wife-Hunting (2006)
Mature Woman: Wife-Hunting is a 2006 Japanese pink film directed by Yutaka Ikejima and scripted by Ikejima's wife, Kyōko Godai. It is an erotic suspense-thriller in the style of Hitchcock. At the Pink Grand Prix ceremony it was awarded as the Sixth Best Film of the year.
More at Wikipedia.