When Charlie Lambert, Scotland Yard's decorated detective chief inspector, receives an anonymous letter detailing a crime scheduled to occur at a dinner party, he knows what he has to do. Infiltrate the party. Apprehend the criminal. Stop the crime before it happens. His prime suspect: the hostess. A lady who's already gotten away with murder once.

Lady Hannah Hilary can’t afford to have Detective Inspector Lambert sniffing around her weekly parties--not with so many secrets surrounding her husband’s death. But sniff around he does…until his investigation transforms into something far more intimate--and more dangerous--than either anticipated. Hannah can’t fall for a man who would see her shackled and imprisoned if he ever learned her secrets. And yet…

As Hannah’s past and Charlie’s investigation grow ever more entwined, they risk their livelihoods for a chance at a love that should be impossible. But when a deadly third player enters the game, there's more than just their hearts on the line—it's their lives.