Soylent green

Charlton Heston plays a cop in this science-fiction horror story. The setting is New York in the year 2022 teeming with 40 million citizens most of whom are out of work. Environmental erosion is almost complete and voluntary death is encouraged by government-sponsored clinics. For their food the people have grown to rely on a wafer-like substance called soylent. As Heston investigates the murder of a magnate in the dictatorial Soylent Company he comes face to face with the hideous truth about the secret ingredient of "Soylent Green."