When the body of FBI agent Jean Transom is found on the frozen slopes of Quandary Peak, the nearby town of Breckenridge, Colorado, becomes the focus of a major investigation. A quiet, dedicated agent on the surface, it soon becomes clear that there was another side to JeanTransom. And who better to uncover it than Special Agent Ren Bryce, an expert in violent crime and a woman with secrets of her own. Her boss, her informant, her colleagues, her ex – Ren needs to know who she can trust ... because the last person she can trust is herself.