A society lady Maxine (Gladys Cooper) has trouble with her charity parties where jewels are stolen in an insurance scam. When a socialite is murdered at a party, after she passes a valuable ring to Gay Lawrence (George Sanders) aka The Falcon. The Falcon and his assistant Goldie (Allen Jenkins) investigate the killing with the help of Helen (Wendy Barrie) who is hot on the Falcon, much to the annoyance of his actual fiancée Elinor (Nina Vale) who has one of the most bizarre accents ever heard in the cinema.
A fast moving crime B-movie, Sanders plays the Falcon with a smooth assurance like he'd played the role half-dozen times before, though this is the first in the series. (Probably because Sanders had played a very similar role in The Saint series!) The film has plenty of fast moving action and storyline and sharp dialogue which helps makes it very entertaining.