What is the name of a very important for me and for everyone for understanding the current situation in the world, a short television film (and, perhaps, a fantastic story on which this film was based), where there is a war, supposedly with aliens-creepy monsters, where each side takes pills necessary for survival, and when someone did not take the pills, it turns out that each of the warring parties are just the ordinary people from whom the pills turned into monsters so that the war would continue for the benefit of those who organized this war.
The Outer Limits S03E19 Hearts and Minds?