Dumb Show is a comedy about a vain, greedy but endearing TV comic. Barry’s show is on the skids and his personal life’s no picnic either. Enter Liz and Greg, private bankers in pinstripes prepared to make ole’ Barry the toast of the banquet circuit. Ripped from the headlines then stretched for effect, Dumb Show, by Joe Penhall, is a tale of table-turing and distrust. Martin Benson directs.