The quiet village of Homosasa, Florida, seemed like the safest place for Mark Lunsford to raise his nine-year-old daughter, Jesse. That peace was shattered on a February morning when Mark found Jesse’s bed empty and her alarm clock ringing. With no signs of a struggle and no barking from the family dog, the FBI faced a baffling mystery that pointed toward the people closest to her. This documentary tracks the high-stakes investigation that saw a grieving father and grandfather put under the microscope of federal agents while a predator remained hidden in plain sight.