The Good Father () is a 2022 Japanese suspense horror film directed and written by Shà  Kataoka and starring Sara Minami.
Five years ago, the psychotherapist Shiro Kubo (Hiroshi Tamaki) and his family ended up in a car accident. Her wife Mayuko is in the hospital in a vegetative state, and her younger daughter Luna suffered burns and now spends her time at home and wears masks that cover her whole face. Kubo himself now walks with a limp. His older daughter Hana (Sara Minami) was miraculously unhurt, but suffers from a trauma and has stopped going to school.
Hana befriends Jun (Ryà «sei à Ânishi), a local high school boy who's the same age as her. Jun is investigating a strange phenomenon where various people in the city have seemed to lost their humanity and ability to walk and speak; his own mother has also been a victim. Jun starts to suspect that Hana's father might have something to do with the phenomenon.
One day, Hana's father brings home a woman (Yuki Sakurai) who he says is their mother, who has miraculously woken up from her coma. However, Hana can't seem to shake the feeling that something is off, and that the woman looks completely different than the mother she remembers.