A mysterious man informs Poppy Palmer that a murder is to take place at her next event and asks for her help to stop it. All Poppy knows is that it will be someone close to her, but her Unknown Contact won’t reveal who that someone is. Determined to save a life, she agrees to work undercover.

As the guests arrive at The Spot, tension hangs thick in the air. Poppy navigates through the crowd, desperately trying to uncover the would-be killer before it’s too late. But when her husband is murdered, the stakes skyrocket. Now, everyone is a suspect, and even the man who warned her is under scrutiny. Is this attack a personal vendetta, or does it stem from her husband’s past? With each twist and turn, Poppy and the guests try to discover the truth. The police can't be called and the doors are locked until the killer is discovered. Anticipation turns to sheer terror as the guests realize they’re trapped in a deadly game, with the killer lurking in their midst.