A secretary sends a coded plea for help in her monthly report; two detectives investigate and find out that men are jailed on phony charges, forced to work in oil fields and then murdered if they try to escape.
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The Devil's Pipeline (1940) is a romance movie. Starring Richard Arlen, Andy Devine, John Eldredge. Rated 7.0/10 on TMDB. Watch it online free on ZapFlix.