The Oil-Hell Murder (1992)

Okichi is the bored wife of a rich oil dealer. Yohei is a young man who is the son of Okichi's former business partner. As a child, Okichi often cares the boy, but when his father dies, he moves away. Years later, he returns as a man, and Okichi becomes momentarily in love with him. But Kogiku, the beautiful daughter of a rival oil dealer is also in love with him. The problems escalate when Kogiku's father finds out the relationship.