Matthew McConaughey is perfectly cast as a sadistic dallas cop who works as a hit man in “Killer Joe”, but at some point I found myself curiously disengaged from this story and didn’t care what happened to everyone involved in it. That’s a damn shame, because McConaughey, who delivered such a daring performance in “Magic Mike”, gives yet another memorable performance in a somewhat mediocre film. Director William Friedkin (known for “The Exorcist”, and “The French Connection”) manages to bring superficial credibility to a highly ridiculous story about a young man (played by Emile Hirsch) who hires Mr. Joe to kill his mother (don’t ask). But make no mistake, the movie has the right look and feel, and the right man in the crucial leading role. The story is never boring, but it has no resonance. Juno Temple, Thomas Haden Church and Gina Gershon head a solid supporting cast. But the real standout is definitely McConaughey. His accent and attitude are perfect, and he brings much-needed spice to the film. But when you don’t care about the outcome, nothing else matters.