Paris, 1938: a mysterious studio fire kills runaway heiress artist Juliette Willoughby and destroys her surrealist masterpiece Self Portrait as Sphinx.

Cambridge, 1991: two art history students make a discovery that threatens to expose the Willoughby family and will change the course of their lives forever.

Dubai, present day: an art dealer is accused of murdering his oldest friend just as the Willoughby secrets are about to be uncovered.

Three suspicious deaths over the course of a century. Is the key to unlocking them all hidden in Juliette Willoughby's lost masterpiece?