Human Feelings as Drugs
It would be really cool to have a movie about this in a world where the government distributes these to people, and at first glance everything is fine, people with depression and antisocial disorder are being instantly treated and that’s great. But then you realize that there are groups of people abusing these drugs underground, like there will be people on happy all the time, people that use hope to delude themselves, or people that drug other people with love, and that true human emotions have been nearly wiped out. Then at the end it’s discovered that the government is using these drugs to control society and manipulate people into becoming soldiers by taking away their empathy and filling them up with trust for the government. So it ends in an uprising led by a resistance group who lead the people to realize that their humanity has been stripped and doesn’t come in a bottle.