"A.E.W. Mason created his Gallic detective hero Inspector Hanaud long long before Agatha Christie dreamed up Hercule Poirot, a similarly egocentric sleuth. Since Mason's best-selling novels were mainly epics of Empire, his detective stories were relatively overlooked. But Hanaud came to the screen first in 1920, enjoyed brief revivals in 1930 and again in 1938, and was played by a quintet of actors that included Austin Trevor, who also played Poirot! So far there hasn't been another screen outing for Hanaud since this quite elaborate British 'B' of more than thirty years ago. Very stylishly photographed by Erwin Hillier, though partially marred by an annoyingly tricky musical score, it's still a good mystery story. Oscar Homolka isn't everybody's idea of a typical Frenchman, but then neither was Peter Ustinov, a later Poirot!" William K. Everson