Is he or isn't he? That's the question at the heart of Series 1 (2006-07) of the highly stylized British cop drama Life on Mars (later adapted for a 17-episode U.S. run). Is Detective Sam Tyler (John Simm) mad, bad, or dangerous to know - which is to say, is he delusional, disjointed, or actually in a coma imaging Manchester circa 1973?
