A horror game of a man who are trapped in a small house, suffering from psychosis with no memory. In that game, he Carefully observe his surroundings to distinguish reality from hallucinations, and overcome his illness by taking medication from visitors at the right time.

https://store.steampowered.com/app/3690010/Whos_at_the_door/

https://www.youtube.com/watch?v=5rPk5oQkWpg