The Inheritance
On his deathbed, a wealthy businessman announces that his fortune is to be split equally among his three illegitimate children, whose whereabouts are unknown. A bevy of lawyers and associates begin machinations to procure the money for themselves, resorting to the use of impostors and blackmail. Yet all are outwitted by the cunning of the man's secretary (Keiko Kishi), in this entertaining condemnation of unchecked greed.
Starring Keiko Kishi, Tatsuya Nakadai, Sō Yamamura, Seiji Miyaguchi, Yūsuke Kawazu, Mari Yoshimura, Minoru Chiaki, Misako Watanabe, Osamu Takizawa, Kōji Mitsui
It's a drama movie, and has a rating of 7.4 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from United Kingdom.