Everyone at The New London Arts Museum is panic-stricken. The Artemisia Gentileschi painting borrowed from a New York gallery for a blockbuster show opening in days has been switched for a forgery. And, Curator, Lady Gabriella Peake Jones, in charge of the exhibit, is the prime suspect. At a loss, Gabi asks her friends and neighbors, Nick Donahue and Marina DiPietro to find the original painting and uncover the culprits, a group of ruthless thieves running a long con. With as many suspects as there are galleries in the museum, getting it wrong isn't a gamble Nick can afford to take.