Equus by Peter Shaffer
Dr. Martin Dysart, a psychiatrist, is confronted with Alan Strang, a boy who has blinded six horses in a violent fit of passion. This very passion is as foreign to Dysart as the act itself. To the boy's parents it is a hideous mystery; Alan has always adored horses. To Dysart it is a psychological puzzle that leads both doctor and patient to a complex and disturbingly dramatic confrontation.