The ninth of forty-seven Charlie Chan movies starring Warner Oland.
This film is mentioned in the mystery film Gosford Park. It is mentioned because a fictional producer named Morris Weissman went to Gosford Park to do research on British customs. Actor Alan Mowbray, cast member in the Chan film, is also mentioned.
This was the first of the Charlie Chan films with an original screenplay not based on one of the Earl Derr Biggers stories.