Tsumetai nettaigyo

A meek fish shop owner, Nobuyuki Shamoto (Mitsuru Fukikoshi), is coerced into partnering with a charismatic but sinister middle-aged man, Yukio Murata (Denden), and his wife Aiko (Asuka Kurosawa), after Murata helps his troubled teenage daughter Mitsuko (Hikari Kajiwara) by offering her a job at their tropical fish shop. As Nobuyuki becomes more entrenched in Murata's eccentric and violent lifestyle, he begins to lose his sense of right and wrong, leading to a disturbing and bloody confrontation.