Just four months ago, Tyler Perry tried for some award season glory and dramatic resonance with “The Six Triple Eight,” a World War II story meant to celebrate an important achievement in history. The picture managed to score a single Academy Award nomination, but the movie wasn’t far from the usual in Perry’s oeuvre of melodramatic, simplistic offerings. He’s right back to his old ways in “Duplicity,” an especially budget-conscious mystery that’s daring to blend the crisis issue of police shootings with relationship troubles facing overly combative characters. Perry’s back in soap opera mode in the endeavor, giving the effort a healthy dose of ridiculousness to keep viewers interested. And he’s especially sloppy assembling the details of the feature, skipping critical questions of evidence and characterization to plow ahead as a tedious detective story with an absurd payoff. Read the rest at Blu-ray.com