Simple? He loved horses. This intense production of Shaffer's appealing yet disturbing psychodrama offers insight into the motives behind one boy's frenzied attack on the creatures closest to his heart, perhaps reflecting our own moral blindness. Definitely not horseplay. This acclaimed company returns to the fringe for the tenth time with a revival of its celebrated production from 2015: 'Here's a treat to remind us why we still go to the theatre… a fast-paced drama, by turns funny, disturbing, intellectual, haunting. Sharp direction and polished acting' ThreeWeeks.