This is a good little thriller from the beginnings of sound. The only real problems it has are due to the era it was made, one when music wasn't a standard part of talkies, so the pace can seem a bit slow.
The plot concerns a murder during an elaborate game of charades. The bullets fired aren't blanks and as a result no one is playing dead. Of course since the game was taking place during a very fancy party everyone is a suspect. A neat twist is that any of the stereotypical scenes of the detective bringing everyone together are at the beginning of the movie, well before the denouncement.
The dialog is witty and the mystery keeps your interest, which is a big plus. I'm reasonably certain that the mystery is played pretty fairly which is nice since many times in B- movies the murderer comes out of left field.
Despite this not listing as available on video, Alpha Video does have it as a double feature with the very short Moonstone, and the pair makes a nice evenings viewing.