Chicago’s House Theatre is the latest of the city’s “generation-defining ensembles that includes Steppenwolf and Lookingglass. With 26-year-old Nathan Allen as head carpenter, the House — with its boyishly playful, highly physical shows that keep a steady finger on the pop-cultural pulse as they win mostly rave reviews — has quickly become the theater for the under-35 crowd, a demographic that few other companies seem able to pry away from their date movies and ‘Friends’ reruns.”