Daniel Radcliffe’s nude scene may have stolen all the headlines in last year’s revival, but Michael Riedel says that Peter Shaffer’s Equus is worth a much closer (and less prurient) look. “The haunting drama about an emotionally disturbed boy who blinds six horses with a spike stunned audiences into what Shaffer calls ‘breathless silence’ when it premiered at the Old Vic in London in 1973.”