A mysterious coin found at a murder scene stirs the curiosity of young actress detective Oshichi and her brother Hyoma, who set out on a private investigation to unveil the secrets hidden behind the coin.
| Writing | Tatsuo Nakada | Writer |
| Writing | Kazuo Kasahara | Writer |
| Directing | Kokichi Uchide | Director |
| Writing | Torao Setoguchi | Story |
| Camera | Nagaki Yamagishi | Director of Photography |
| Sound | Masao Yoneyama | Music |
