My Nightmare Disorder

When Enrique finds themself in an abandoned mental hospital, they find a fortune cookie saying "Go to the tattoo parlour across this hospital". They follow this with no deeper intention than having a bit of fun. But when Enrique finds yet another fortune cookie there, they start to pursue this treasure hunt that ends up showing them a harsh truth. Meeting with people whom they ignored the existence of, Enrique uncovers a ridiculous world that makes no sense in their eyes.
This world is more than it seems.
Behind each mask is a figure that has always been there.
How have we never noticed?
Have we been living lies our whole lives?
Are we all crazy?