London, 1760s: In her cramped rooms, Betsy-Ann shuffles a pack of cards. A gambler, a dealer in gin and stolen goods, and living with a grave robber, she knows there's no honour amongst thieves, but desperately wants to make a fresh start. Sophia, sitting in her Bath parlour, is newly married to the charismatic Edmund. She can hardly believe her luck, especially since she is hiding 'a little weakness', one she is determined to conquer. When both women uncover horrifying secrets about the men they thought they knew, their lives interweave through a dramatic series of events. Who will come up trumps?