If I were Derrick Sanders, artistic director of Congo Square Theatre Company, I'd produce anything Chadwick Boseman wrote, however ungainly, implausible, wrongheaded, or misbegotten. Because it's a sure thing that eventually he'd give me something great. Unfortunately, Deep Azure isn't great. Written entirely in rhymed couplets that bounce between hip-hop and pseudo-Shakespearean diction, this supernatural murder mystery is both wrecked and--almost--redeemed by Boseman's enormous creative energy. On the one hand, the couplets are gratuitous, and the buildup is overblown for the predictable payoff; on the other, Boseman displays a dramatic intelligence and audacity that make the show work even as it's failing. Sanders's production is so good that if I were Boseman, I'd hand Congo Square anything I wrote. Through 10/9: Thu-Sat 8 PM, Sun 2 PM. Sat 9/24, 3 and 8 PM. Duncan YMCA Chernin Center for the Arts, 1001 W. Roosevelt, 312-587-2292. $15-$25.