A struggling young vaudeville performer who is persuaded to impersonate a missing heiress gets caught up in a scam that thrusts her deep into the Roaring Twenties' world of gangsters, bootleggers, and murder.

In 1917, Jessie Carr, fourteen years old and sole heiress to her family's vast fortune, disappeared without a trace. Now, years later, her uncle Oliver Beckett thinks he's found her: a young actress in a vaudeville playhouse is a dead ringer for his missing niece. But when Oliver confronts the girl, he learns he's wrong. Orphaned young, Leah's been acting since she was a toddler.

Oliver, never one to miss an opportunity, makes a proposition—with his coaching, Leah can impersonate Jessie, claim the fortune, and split it with him. The role of a lifetime, he says. A one–way ticket to Sing Sing, she hears. But when she's let go from her job, Oliver's offer looks a lot more appealing. Leah agrees to the con, but secretly promises herself to try and find out what happened to the real Jessie. There's only one problem: Leah's act won't fool the one person who knows the truth about Jessie's disappearance.