Boetticher would of course go on to become one of the greatest directors in the world; a man who made tiny, minimalist westerns, stripped down to the bolts and rigged to engage without pretense the joists concerns of inwardly-divided civilization. Existential stuff, and effortlessly impossibly poetic. Well, BEHIND LOCKED DOORS is, err, minimalist and stripped down. Also adorably silly. But kinda brilliantly designed.
Tor Johnson is something else! This isn't a masterpiece, but entertaining enough for fans of B-movie noir. Good photography and a tight 1-hour format; when this came out, it was almost certainly shown after the "main feature", back in the days when you could go to the movie theater and they would show 2 or 3 films, a newsreel, and a ton of trailers or "previews". All for a 40 cent ticket!
Pretty nifty B from Boetticher that succinctly tells a good undercover in an asylum tale. Performances are pretty good for the genre with special mention to Tor Johnson, in a wordless performance, as an inmate used by the corrupt administration to punish and/or kill.