Crazy, fun exploitation flick about a reporter faking insanity to investigate a murder in an asylum, but then finding faking madness and being mad are kind of a bit too close to each other for comfort.
It also actually says things about America at the time it was made, including comments on racism, facing responsibility for one’s actions (or not), and how being different can condemn you.
So sleazy in parts, and cheaply profound in others.
Best line comes when the hero finds himself in a women’s ward: “NYMPHOS!”