What happened to Dr Jekyll? 'Strange Cases', the investigative television documentary programme, tries to solve this puzzle using up-to-date know-how. Key events are reconstructed and expert witnesses examine the evidence to reach a chilling conclusion.

The play provides an accessible, exciting approach to the novel, as well as numerous opportunities for media wor. Its language and atmosphere are true to Stevenson's story and make comparison work easy. The large cast, including a chorus, makes the play suitable for reading in class, acting in drama lessons or school productions. The resource material investigates transformation, drugs and genetic engineering, as well as providing stimulating drama, media, speaking and writing activities.

Robert Lewis Balfour Stevenson was born on 13 November 1850, changing his second name to 'Louis' at the age of eighteen. He has always been loved and admired by countless readers and critics for 'the excitement, the fierce joy, the delight in strangeness, the pleasure in deep and dark adventures' found in his classic stories and, without doubt, he created some of the most horribly unforgettable characters in literature and, above all, Mr. Edward Hyde.