Mr Utterson, the lawyer, is concerned when he receives a will from his friend, Dr Jekyll. In it, the doctor asks for all his possessions to be passed to the sinister Edward Hyde. Utterson suspects that something is very wrong. He tries to find out the truth and discovers that things are far worse than he could ever have imagined. New features included in the book: illustrated character lists; notes on history; on page explanations of difficult words; and new teaching notes.