鍵
- Tahun: 1959
- Negara: Japan
- Genre: Drama
- Studio: Daiei Film
- Kata kunci: based on novel or book, sexual obsession, diary, sexual arousal, train, older man younger woman relationship, japanese family, sexual inadequacy, sexual dysfunction, young wife
- Pengarah: 市川崑
- Pelakon: 京マチ子, 二代目 中村鴈治郎, 叶順子, 仲代達矢, 北林谷栄, 菅井一郎