"(My character's) a guy who had his hand cut off by some bad guys when he was a teenager and he's now my age and he spent the rest of his life looking for his hand," Walken explained in a video clip posted on the play's Web site.
"There's lots of twists and turns, as there are in a lot of my stuff," McDonagh said of the show's plot. "It's a situation that starts off insane and just gets kind of worse and worse and worse in a comic kind of way."
"I think people should see it because it's short and it's funny and sad and beautiful," added Rockwell.
McDonagh's plays include "The Pillowman" and "The Lieutenant of Inishmore." He also penned and directed the film "In Bruges."