A young Sheriff’s Deputy, Zoe Adams (Sarah Thompson), investigates a series of murders and soon realizes a serial killer is on the lose. As she and her boss, Sheriff Jimmy Fleck (Jeffrey Combs), feels the pressure of finding the killer, their love affair begins to falter. Meanwhile, Zoe teams up with the autistic bloodhound trainer, Leroyr Calhoun (Michael Berryman), and together they start connecting the dots between thernkiller’s mysterious clues. With Zoe’s determination and Leroy’s amazing mathematical talent, they eventually solve the riddle and track down the ingenious murderer. But when Zoe learns that she is the ultimate object of the killer’s obsession, will the dysfunctional Leroy be able to save her before it’s too late?