As others have pointed out, this is a remake of The Black Camel, which itself was one of the original Chan stories by Biggers. If you've seen the earlier film, then of course you know the twist by which this one is solved - which of course is very disappointing. Were people really not paying attention between the two versions of this story? Harold Huber gets to play a policeman straight this time, which is a big improvement over the usual clowning he was required to do in other Chans. Son Jimmy intrudes on the story too much for me, as usual, but doesn't express the worst of his pop-eyed hammyness in this one. There's not much Rio here, as others have complained, but this is a B movie, not a travelogue. The ladies are lovely, there's a musical number, and Jimmy gets an action scene near the end. All in all, quite good.
Review of Charlie Chan in Rio
