Visionary director Stephen Soderbergh has a new film out.
The movie is shot entirely on an iPhone.
'Unsane' stars Claire Foy as a woman trying to escape a stalker.
She accidentally commits herself to an insane asylum overnight.
Her attempts to get out lead to Kafaesque consequences.
She also begins to think her stalker is in the asylum with her.
The psychological thriller is getting rave reviews.
The movie holds an 80% fresh rating on Rotten Tomatoes.