Deep Dish Theater stages the second Triangle production this season of the Pulitzer Prize-winning musical, “Next to Normal,” beginning tonight. The show follows a woman’s struggles with her bipolar disorder, affecting her marriage and her children. Paul Frellick directs, with musical direction by Julie Florin. University Mall, Chapel Hill. 8 p.m. Friday and Saturday; 2 p.m. Sunday (through March 24). $19-$21. 919-968-1515; deepdishtheater.org.