This movie was theatrically released in Great Britain in September, 1963, and therefore ranks as the only theatrical movie directed by TV producer and director and one-time actor (Brandy for the Parson, Ivanhoe, Laxdale Hall), Lionel Harris. Admittedly it's an over-talkative affair with very little action, even at the long-awaited climax. For all its excessive talk, however, the Edgar Wallace plot is reasonably intriguing, if somewhat implausible.Director Harris does what he can to improve matters by making effective use of real locations and drawing uniformly competent performances from his players. The film's modest production values have also been well disguised by skilled teamwork behind the camera. Photography, sets, film editing and music scoring are surprisingly slick, especially when measured against the usual humble standards of British TV.