Smitten with spring fever, Elizabeth Tudor escapes London for fantastical Nonsuch Palace in the sweet Surrey countryside. There she hopes to relax and pose for the official royal portrait for which she is holding a competition. But one of her artists is burned to death, and portraits of the queen are going up in flames. When she hears that her rival, the dangerous Mary, Queen of Scots, has been peering in mirrors and announcing, "I see the next queen of England!" Elizabeth summons her Privy Plot Council.