Manchester, England, 1857. Rosanna Hawkins is one of Manchester's finest artists, reproducing "parlor versions" of classic masterpieces. When the largest art exhibition ever to be held in Manchester opens, Rosanna meets Detective Martin Harrison, head of security for the exhibition. Then Rosanna recognizes her own works on display. Someone is stealing paintings and replacing them with her reproductions. Rosanna proposes a plan to capture the art thief before he disappears with Michelangelo's Manchester Madonna. If Rosanna and Detective Harrison fail, not only will the painting be lost forever but so will their chance to paint their own happily ever after.