Aspiring art critic Anne Stilwell arrives in New York City, hoping to spend the summer interning at the famed Metropolitan Museum of Art. But instead she is sent to one of its branches - the Cloisters, a Gothic castle museum famous for its collections of medieval and Renaissance art. Thus, Anne finds herself in a narrow circle of mysterious reclusive researchers studying the art of fortune telling with Tarot cards. At first she is skeptical about them. Until he discovers a mysterious deck of Italian Tarot cards from the 15th century, which, according to legend, contains the key to fortune telling. A race begins between colleagues to see who will be the first to reveal the secret, and then the corpse of one of them is found in the museum...