A man keeps his girlfriend tied up in his small apartment and tortures her. She is undressed, subjected to various types of bondage, whipped, and tortured with a razor blade.
Unfortunately the movie The Embryo Hunts in Secret is not yet available on HBO Max.
| Directing | Kōji Wakamatsu | Director |
| Camera | Hideo Itō | Director of Photography |
| Editing | Fumio Miyata | Editor |
| Production | Kōji Wakamatsu | Executive Producer |
| Directing | Masao Adachi | Assistant Director |
| Sound | Yukio Fukushima | Sound Effects Editor |
| Writing | Masao Adachi | Screenplay |
| Sound | Masao Adachi | Original Music Composer |
| Lighting | Hajime Isogai | Lighting Director |
| Camera | Hiroshi Kurata | Assistant Camera |
| Lighting | Seiji Takayama | Lighting Technician |
| Sound | Kunio Kurita | Sound Recordist |
| Camera | Yoshimasa Koizumi | Still Photographer |
| Production | Genji Shishikura | Production Manager |
| Camera | Ken Okita | Assistant Camera |
| Lighting | Chuuji Sueyoshi | Lighting Technician |
| Production | Hiroshi Imai | Production Assistant |
| Art | Mamoru Katô | Art Direction |
