Death Cell

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 novel They Called Him Death by David Hume. This film was long thought entirely lost, but a dubbed Italian version has been traced. The BFI 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.