Woody Allen is back in the murder game, a subject that he revisits from time to time in his films, though he usually keeps those plots pretty serious. Think “Crimes and Misdemeanors” and “Match Point.” But while “Irrational Man” has both talk of and an act of murder at its center, it plays lighter than Allen’s more “serious” films.With Ramsey Lewis’ “In Crowd” playing on his car radio, we’re [...]