Proof | Performing Arts Review | Chicago Reader

David Auburn's Pulitzer-winning play about the relationship between a young, troubled Hyde Park woman and her even more disturbed John Nash-like mathematician father is funny, moving, and tightly written, with enough twists to keep it interesting even on a third viewing. But this Keyhole Theatre Company production is hobbled by indifferent direction and an ineffective ensemble. Usually savvy director Frank Merle never manages to find the humor or drama in the material. Erin Killean gives a one-note performance as the protagonist: she excels at whining but is less certain whenever she has to express indignation, outrage, or love. James Eldrenkamp is similarly disappointing as the mathematician. If there's a beautiful mind lurking beneath his bland exterior, it's well hidden. Through 10/30: Fri-Sat 8 PM, Sun 7 PM. Josephinum, 1500 N. Bell, 773-805-5055. $15.

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