Sato went so far as deliberately cutting off contact with her friends and family during the shoot.
There are simply few accomplished actresses willing to perform nude scenes.
When Nanae calls Rei at the hotel after 10 years, Rei is the one who she feels like she wants to speak with, for better or for worse.
The film is a torrid, emotionally bruising tale of sexuality, class, domestic abuse and murder, featuring a pair of extraordinarily committed performances by its stars, Kiko Mizuhara and Honami Sato.