Warm Water Under a Red Bridge

This romantic comedy tells the story of a salaryman who has been laid off from his job at an architectural firm in Tokyo and is undergoing marital difficulties. When his old friend dies, he travels to the small fishing town of Himi Toyama Prefecture to find a treasure that the old man had hidden in a house there decades before. He does not find what he expects but takes a job with local fishermen and becomes romantically involved with a woman with an exaggerated proclivity towards female ejaculation.
(Source: Wikipedia)