Fear Is the Key

A man is in radio contact with his family when their airplane is shot down. He wants to find and punish those responsible and becomes a criminal to get a job as a deep-sea diver with those salvaging the plane's cargo.

Fear Is the Key is a 1972 drama crime movie directed by Michael Tuchner, starring John Vernon, Suzy Kendall, Barry Newman. It holds an IMDb rating of 6.3/10 from 2,610 votes and runs 1h 43m.