This Man Is Dangerous

This Man Is Dangerous (U.S. title: The Patient Vanishes) is a 1941 British thriller film, directed by Lawrence Huntington and starring James Mason and Gordon McLeod. The film is based on the 1934 novel They Called Him Death by David Hume.

This film was long thought entirely lost, but a dubbed Italian version has been traced.[1] Having named the film on their "BFI 75 Most Wanted" list, the British Film Institute subsequently screened a discovered American reel of the film under its American title of 'The Patient Vanishes' in 2017 at its Big Thrill event - the first time the film had been shown on reel in the United Kingdom in seventy years.[2]