Kelly Chapman, psychologist and expert witness. She's unattached, but 100-percent committed to her clients, her foster child, her friends.

Clay Thatcher, FBI special agent: Missing Persons. A loner and, like Kelly, he too is unattached but 100-percent committed to his job and only his job.

That's why he's in Chandler, Ohio. Kelly Chapman has disappeared. Is it because she testified against someone who now wants revenge? Or is she the fourth victim of a killer responsible for three recent deaths?

Searching for her, Clay has to work against the clock. And Kelly soon becomes more than just another case to him.