Band Geeks, Single Box Turn at Theatre Building Chicago, through Nov. 4. Thought you'd left the high school band or choir or drama club behind forever? So why does Come On, Eileen—with a full brass and woodwind section—make you cry? Musical answers here. MSB
Dead End, Griffin Theatre at Theatre Building Chicago, through Nov. 12. Slum kids see what they can't have, desperate women take money over love and men must choose the lesser of evils in Sidney Kingsley's gritty Depression-era social drama with 27 actors. JA
Hatfield and McCoy, The House at the Viaduct, through Nov. 4. Last chance to see this smart, creative and smugly youthful troupe's often-boisterous, violent take on the Great American Feud, fueled by the Bible, Shakespeare and traditionally inspired music. JA
Picasso at the Lapin Agile, 20th Century Ensemble at The Spot On Broadway, through Nov. 11. This new troupe's debut show freshens Steve Martin's smart speculative comedy with music, dance and drinks. Set in a bar-cabaret, it's now performed in one, too. MSB
By Abarbanel and Barnidge