Christy Mahon comes into Flaherty’s tavern on the west coast of Ireland and claims to have killed his father with a shovel. The locals are charmed by his boldness and daring, and he becomes a local hero–until the old man shows up. The play’s world premiere triggered three nights of riots in Dublin, and fistfights in the aisles when it transferred to New York. City Lit’s audience is much better behaved.