IMDb
4.8 /10
64 votes

Crime · 1938 · 1h 16min
John Loder and Elliot Makeham star in Redd Davis’s British topical crime thriller. Professor Grayson is working on an anti-gas experiment and Dr. Klee, whose quiet advertising covers other welfares, means to find it.
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IMDb
4.8 /10
64 votes
Rotten Tomatoes
The tomato isn't ripe
Metacritic took the day off
TMDB
6.0 /10
3 votes
Letterboxd
Letterboxd didn't respond
Weighted average
5.3/10