This story of the Honolulu detective who solves a murder mystery that baffled Scotland Yard and Europe is well directed and aptly photographed. Cast shows smart selection.
What aids the film more than anything is that the mystery angle is kept paramount to the romance in it. This is between Marguerite Churchill and John Garrick, both personable. She is the granddaughter of the wealthy American found dead in a London hotel. Garrick is the companion of the old man. This romance is kept mild and gets its start only after the dead body is discovered by the police. While the romance ends before the mystery, both follow fast to a happy ending with a wisecrack.
The picture is full of wisecracks: the flippant pieces of philosophy spoken by Chan (Warner Oland) in almost doggerel English and the more funny lingo of Warren Hymer, as the Chicago racketeer.