Mixing pitch black comedy with genuine terror, Hangman reveals McDonagh at his most technically accomplished, although not his most profound. Overlong at nearly two-and-a-half hours, the play feels like an extended episode of Alfred Hitchcock Presents, complete with twist ending. Despite its longueurs, however, it's wonderfully entertaining, thanks to the playwright's gift for acerbically funny and ever-surprising dialogue, the superb performances by its well-honed ensemble, and Matthew Dunster's marvelous staging that fully immerses you in the morbidly funny proceedings. Anna Fleischle's set design, featuring inventive use of the overhead space, is a stunner. While the first act drags at times, the second barrels along at breakneck pace, the highlight being the unexpected arrival of Pierrepoint himself (John Hodgkinson, stealing the show in just a few minutes), who makes clear his intense unhappiness at the way Harry spoke about him in his interview.