In the 1920s through the 1930s, Hollywood made quite a few old dark house movies--ones which have very, very similar plots involving a group of people stuck in a place with some maniacs. In light of this, "Midnight Faces" already has a major strike against against it. Just a few similar films would include "The Old Dark House", "The Cat and The Canary". "The Bat", "The Black Cat", "The Bat Whispers" and even comedies such as Harry Langdon in "The First Hundred Years", Buster Keaton in "The Haunted House" and Bob Hope in "Ghost Breakers"--and I'm sure I could come up with quite a few others if I tried!
This film finds out hero inheriting an old estate in Florida. However, when he, his friend and his black man-servant (thrown in for comic relief) near the home, they think they see something moving inside. Once they take possession, some of the dead uncle's old servants arrive and they are a bizarre assortment of stereotypes--including a supposed Chinese man who look like he's just walked off a Fu Manchu film set! At night, trouble erupts and it's up to the leading man and his friends to get to the bottom of it. Much of it didn't make much sense until the very end--when the long and complicated plot is explained--including what REALLY happened to the uncle. There were a few surprises but all in all, the movie seemed terribly derivative--just like the many other similar films I've seen. It's pleasant enough but nothing special.
By the way, one sour note in the film is the black servant. While he didn't over-react as badly as some black men in these films did, all too often they were included as a cheap laugh. Back then, white folks though it was hilarious to see a black man act cowardly and scared in these films. This role, like most of the films listed above, was present in this film but fortunately his performance wasn't as over the top or offensive as most--but it still wasn't necessary.