When a travelling theatre group comes to Florence, the whole city is excited, especially Leo and Tom, who get starring roles in the play. But when the performance gets underway,something sinister is going on behind the scenes. The other two actors are planning on stealing the priceless Medici Sapphire and when Leo works out what they are doing, he gets tied up, leaving Lisa continuing to act alone on stage with no idea of what is going on beneath her.