2018 film directed by Shinya Tsukamoto

Suffering from double vision, a single mother tries to take care of her baby in the grip of terrifying hallucinations. Experiencing a nervous breakdown, she is deemed unfit to take care of her child and has it taken away from her. The only respite the mother has from her visions is when she sings. An award-winning novelist overhears her singing whilst riding the bus and the pair subsequently develop a volatile relationship.

A businessman, Tsuda, runs into a childhood friend, Kojima, on the subway. Kojima is working as a semiprofessional boxer. Tsuda soon begins to suspect that Kojima might be having an affair with his fiancée Hizuru. After an altercation, Tsuda begins training rigorously himself, leading to an extremely bloody, violent confrontation.