First class Carr, in his best form.

Published in England as The black spectacles ( )

Published in England as The black spectacles ( )

Baffling locked-roomer of sorts that keeps you guessing until the end. Character motivations/behavior border on the ludicrous (even for Carr). But the impossible situation--a murder is committed in full view of several witnesses and a movie camera, yet no one can say who did it--is one of Carr's most cleverly-conceived, and the solution's a knockout. ( )

Unusual in that Inspector Elliot, who is just the regular policemen in several Dr. Fell cases, is personally involved in this one as he falls in love with a beautiful young woman suspected of poisoning. ( )