Women are vanishing in New York, their remains discovered in horrifying ways. The federal government, desperate for answers, recruits a convicted felon with a gift for solving puzzles. His a shortened prison term. What starts as a straightforward task spirals into a dangerous obsession when the killer takes something personal. Suddenly, he's caught in a lethal struggle with another murderer, both fixated on the same woman—one viewing her as a trophy, the other as someone he must save.