Mofuku no niau hitozuma futari(1986)

Yuki Kimura, a company president's secretary, agrees to marry his son Yutaka on the president's recommendation. When Yutaka breaks up with his lover, a hostess, she implies she's going to commit suicide. In a panic to get to her quickly, Yutaka punches a man at a taxi stand. The next day, when Yutaka's lover hears the news about a man dying and realizes it was the man Yutaka punched, she demands money...