I took a different approach to the theme.
Player “Henry” is stricken with Instabilis syndrome, it’s Latin for Unstable.
Player is in unstable condition of mind.
So he sees stuff that aren’t what they are.
for example,
he sees a cupboard instead of toilet
Sees an Elevator out of nowhere in backwoods.
He sees a creature doll and it suddenly disappears when he approaches it.
A computer with just monitor with code.
And clue is Curing Instabilis since 1992 etc 🙂