The Big Clock

When powerful publisher Earl Janoth arrives at his mistress's apartment, he catches sight of a man leaving the premises. Sick with jealousy, Janoth murders her -- and decides to implicate the man he glimpsed earlier. So, under the guise of business, the magnate orders George Stroud, the editor of a crime magazine, to find the missing person. But what Janoth doesn't realize is that George himself is the man he's trying to frame... (official distributor synopsis)