SINOPSIS: After he goes swimming alone one morning, author Frank O'Toole's body is pulled from the sea with a knife through his heart. Prior to his death, Frank argued with his agent, Larry, over his potential switch to another agent, as Frank's books were failing to sell under Larry's agency. The number one suspect is the invisible Otis Falconer, who Jack and the team try to track down, but find an almost non-existent record on him. Jack and the team realise that the murderer used a boat which was hired under a false identity in order to kill Frank. Elsewhere, Dwayne meets a potential new love interest.