Inspired in part by a 1991 fire at a chicken-processing plant in Hamlet, North Carolina, that killed 25 workers behind padlocked doors, Naomi Wallace’s intelligent, artful 1996 play is an adept blend of populism and dark fantasy, part Odets and part Orwell. A mysterious female union organizer disguised as a man arrives at a slaughterhouse and ignites the passions of the workers, who find themselves clamoring for both love and justice. Sabrina Lloyd’s cunning, bold staging for GroundUp Theatre mostly finds the right notes, and her committed ensemble has a spellbinding intensity. Adding a three-member chorus who harmonize on classic folk tunes, Lloyd gives this deeply humane, poetic piece of political theater even more heart. Through 12/17: Thu-Sat 7:30 PM, Sun 5 PM, Steep Theatre, 3902 N. Sheridan, 773-944-0959, $10-$15.