The Key (1997)
Original title: 鍵
The Key is a 1997 Japanese-language drama movie directed by Toshiharu Ikeda, with a running time of 1h 35m. It stars Naomi Kawashima, Akira Emoto and Mikio Osawa.
Ikuko is a mature, reserved Kyoto woman married for many years to a respectable, now-middle-aged man. The only problem in their relationship has been that her husband is dissatisfied with her lack of passion during lovemaking. All this changes after they meet the young Mr. Kimura