A rather creepy if frequently ridiculous film that perhaps wasn't quite sure what kind of film it was supposed to be: a horror, comedy or even a mystery. When people start disappearing a store clerk Johnny Goodlittle (Johnny Arthur) begins to suspect the nearby lunatic asylum and turns amateur detective...
In the asylum Lon Chaney is waiting as an actual mad scientist up to no good. He entraps Goodlittle plus the target of his affections Betty (Gertrude Olmstead). In a dark house on a dark stormy night our heroes are menaced by various creepy going on involving sliding doors and hidden passages...
So it ticks all the boxes but is just a bit too silly. Its a romp with just about enough fun to pass the time. You could think it is a parody of mad scientist and dark house films though this may well have been the original to those kinds of films.