Hastings Mystery Theater is a Michigan-based vintage cinema program hosted by Randall Schaefer (the "Mystery Master"), who provides historical trivia and context for classic whodunnits and film noir on YouTube

One of the show's featured films is the 1946 British classic "Green for Danger." Directed by Sidney Gilliat, this World War II-era thriller follows the eccentric Inspector Cockrill (played by Alastair Sim) as he investigates a string of murders at a rural emergency hospital, beginning with a postman who dies mysteriously on the operating table. The film is highly celebrated for its clever blend of dark wartime tension and witty suspense.