http://imdb.com/title/tt0070723/

Soylent Green (1973)
7.1/10 from 48467 users Updated : 2017-11-24
[fresh!] 71% [audience liked it!] 70%
Crime , Mystery , Sci-Fi , Thriller
Charlton Heston , Edward G. Robinson , Leigh Taylor-Young , Chuck Connors , Joseph Cotten , Brock Peters , Paula Kelly , Stephen Young , Mike Henry ,
Lincoln Kilpatrick , Roy Jenson , Leonard Stone , Whit Bissell , Celia Lovsky , Dick Van Patten
Richard Fleischer
IMDB 97
1973
In 2022| Earth is overpoted and totally polluted; the natural resources have been exhausted and the nourishment of the potion is provided by Soylent
Industries| a company that makes a food consisting of plankton from the oceans. In New York City| when Soylent's member of the board William R. Simonson is murdered
apparently by a burglar at the Chelsea Towers West where he lives| efficient Detective Thorn is assigned to investigate the case with his partner Solomon "Sol" Roth.
Thorn comes to the fancy apartment and meets Simonson's bodyguard Tab Fielding and the "furniture" (woman that is rented together with the flat) Shirl and the
detective concludes that the executive was not victim of burglary but executed. Further| he finds that the Governor Santini and other powerful men want to disrupt
and end Thorn's investigation. But Thorn continues his work and discovers a bizarre and disturbing secret of the ingredient used to manufacture Soylent Green.