An American journalist travels through 19th-century Japan to find the prostitute he fell in love with but instead learns of the physical and existential horror that befell her after he left.

Dan Mitsu stars as Kana, a female employee at a publishing company who strikes up a sexual relationship with a younger co-worker. He soon discovers that Kana’s fetishes extend to sadomasochistic tendencies, involving a mysterious man only known as “Sensei”. This discovery will push his relationship with Kana to a new, dangerous level that he may not be ready for.