They have trapped hundreds of zombies and have locked in a special prison for zombies where you have to experiment with them and try to invent a cure that turn into humans. You'll have to choose a zombie at random and tests them to see if you react and be able to find the cure. Be careful not to anger them because they can lose and attack roles, which have to avoid if you want to carry out the experiment.
Enjoy the game Experiments with zombies, it's free, it's one of our torture games we've selected.