Dog & Pony Theatre Company’s production of Noah Haidle’s disturbing dark comedy, about a four-year-old whose imaginary friends are as dysfunctional as the real folks around her, is performed on Grant Sabin’s gorgeous set, which successfully combines the protagonist’s fantasy and real lives. If only Krissy Vanderwarker’s passable to pretty good cast had been able to match Sabin’s vision and subtlety. Instead the ensemble delivers a bright, technically proficient, kind of empty-headed take on the play that doesn’t have nearly the comedic or dramatic power of Chemically Imbalanced Comedy’s grittier, more troubling version. Here the performers get lost in performing, showing us they’re actors instead of showing the art of acting itself. –Jack Helbig a Through 5/5: Thu-Fri 7:30 PM, Sat 2 and 7:30 PM, Tue 4/17, 7:30 PM, Storefront Theater, Gallery 37 Center for the Arts, 66 E. Randolph, 312-742-8497, $15-$20, $30 Thu 4/19 (includes postshow discussion and reception).