Is she or isn't she?

A woman is involuntarily committed to a mental institution where she is confronted by her greatest fear.
Unsane keeps every mind human — it fights its subject at zero distance. The story fights on E8/E10/E11 of the E0–E14 reality ladder.
Films fighting at the same level of reality, about the same things.
The same preoccupations examined at another scale — one mind versus a nation.