One museum, two thieves, and the Boston underworld--the story behind the lost Gardner masterpieces worth $500 million and the art detective who swore to get them back.

One museum, two thieves, and the Boston underworld--the story behind the lost Gardner masterpieces worth $500 million and the art detective who swore to get them back.

The Gardner heist: One museum, two thieves, and the Boston underworld--the story behind the lost Gardner masterpieces worth $500 million and the art detective who swore to get them back. The art forger: Boston painter Claire Roth has survived financially by painting reproductions. Influential gallery owner Aiden Markel arrives with a bizarre proposal: her own show if she will forge a copy of a Degas, one of the pictures stolen from the Isabella Stewart Gardner Museum. As she works, Claire and Aiden become lovers, but she doesn't tell him about her discovery that the stolen Degas is itself a copy.