The fiancée who was someone else
Shunsuke Honma, a Tokyo police detective on medical leave after being shot, is asked by a young relative, Jun Kurisaka, to find his fiancée, Shoko Sekine. She vanished after a bank credit check revealed that 'Shoko Sekine' had declared personal bankruptcy years earlier. Honma learns the fiancée was actually Kyoko Shinjo. Her family had been destroyed by her father's loan-shark debts, and she apparently killed the real Shoko, a woman with few close ties, and took over her name and records to live a debt-free life.
