Helen and Mark are actors in a high school version of Shakespeare’s Macbeth. On opening night at the theater there’s a special guest in the audience, Sherlock Holmes, who witnesses a terrible murder on stage. What happens when Helen and Mark join Sherlock Holmes to solve a baffling case of murder in the exciting city of Chicago? Who will solve the case – the Chicago Police or Sherlock Holmes and his teenage friends? Ilustratii color de Paolo D’Altan.