Art detective Ashford Thornton, the Earl of Tremlett, is hot on the trail of London's notorious art thief, Franco Baricci. He is keeping close tabs both on Baricci's cohorts and his newly discovered illegitimate daughter, the lovely Lady Noelle Bromleigh. In his efforts to find out more about her father, Ashford plans to get quite a bit closer to Noelle only to realize that Noelle is an innocent in a deadly game. Complications arise as Ashford and Noelle fall in love and she insists on helping him.