In Billy Wilder’s 1944 film noir masterpiece, “Double Indemnity,” Phyllis Dietrichson (Barbara Stanwyck) seduces insurance agent Walter Neff (Fred MacMurray) into murdering her husband to collect on his accident policy. (Who knew insurance could be so seedy?)  The suspicious and relentless claims adjuster, Barton Keyes (Edward G. Robinson), eventually gets to the bottom of the…