The maverick Hirohisa Sasaki takes on the challenge of adapting erotic fiction.

Saeko, struggling with amnesia, lives with her mysterious husband who calls himself Shinichi. Each night, terrifying nightmares grip her, while eerie and unexplainable events begin to unfold around her. According to the diary of Shinichi’s grandfather, Shigezo, the chilling curse is tied to a woman named Okichi—someone he met at a brothel just after the war ended…