Her Love Boils Bathwater

Her Love Boils Bathwater (湯を沸かすほどの熱い愛) is a 2016 Japanese drama film directed by Ryōta Nakano. It was selected as the Japanese entry for the Best Foreign Language Film at the 90th Academy Awards, but it was not nominated.

Plot
Futaba (Rie Miyazawa) single-handedly raising her teenage daughter Azumi (Hana Sugisaki) is diagnosed with terminal cancer and learns she only has a few months to live. She decides to use her last few months to improve the life of her family. To do this, she tracks down her husband, Kazuhiro (Joe Odagiri), who had left her for another woman. The other woman had in turn abandoned him, leaving him to look after a 9-year old daughter Ayuko (Aoi Itō) whom she claimed was the result of a one-night stand years before. Together, Futaba, Kazuhiro and the two girls reopen the family bathhouse, which will provide them with a comfortable life. Other challenges facing Futaba include helping Azumi to fend for herself at school and taking the girls on a road trip to introduce Azumi to her biological mother, Kimie (Yukiko Shinohara), a deaf woman who gave birth to Azumi when she was only 19.

Cast

 * Rie Miyazawa as Futaba Sachino
 * Hana Sugisaki as Azumi Sachino
 * Joe Odagiri as Kazuhiro Sachino
 * Tori Matsuzaka as Takumi Mukai
 * Aoi Itō as Ayuko Katase
 * Yukiko Shinohara as Kimie Sakamaki
 * Tarō Suruga as Takimoto