In Agatha Christie's classic whodunit (adapted from her book), ten strangers unknowingly linked by a chain of dirty secrets gather at an island estate only to find themselves prey to their unseen host. Director Michael Halberstam and ensemble treat us to an elegant revival--a smorgasbord of diverse complex characters who, as their fellow guests are gruesomely eliminated, gradually turn on one another. Brian Bembridge's set is the ultimate mood enhancer, creating both a sense of irony--how could something so awful happen in this idyllic spot?--and of doom, using chilling storm effects and flickering chandeliers. Though watching trapped rats squirm can grow tiresome, there's no shortage of amusing distractions here. Through 9/24: Wed 1:30 PM, Thu 1:30 and 8 PM, Fri 8:30 PM, Sat 5 and 8:30 PM, Sun 2:30 and 7 PM, Drury Lane Oakbrook, Roosevelt and Butterfield, Oakbrook Terrace, 630-530-0111, $22-$41.50.