Shawn comes to the police station, bored, looking for a case. Gus is out of town at a retreat with his company. While at the station, Shawn sees a man, Leonard Sirtis, talking to Chief Vick. His daughter, Deanna, a highly ranked local tennis player, is missing. The prime suspect is a former stalker of hers, Felix Alvarez. Vick relents to let Shawn to locate Deanna psychically while the cops follow conventional leads.
Shawn gets Gus out of his retreat by telling his bosses that Gus' grandmother is ill. Together, they go to the Sirtis house, where they learn that besides tennis, photography was a hobby of Deanna's. They also learn Leonard had a security camera put into Deanna's room after Felix broke into the house and discover a cheap gold ring among her expensive jewelry. It's an eternity ring, given by someone with whom she was probably intimate. Clearly, she doesn't wear the ring all the time. Must be from a secret lover her controlling father doesn't approve of.
Shawn and Gus go to the tennis club to talk to Deanna's hitting partner. She tells them that Deanna was boy crazy. She recently started dating another player on the tour and her father wasn't happy about it. Deanna might just be laying low to get her father off her back. And, after discovering an alternate address for her in the club computer, they have a good idea where.
When they get to the apartment, the police, EMTs and crime scene photographer are already there. Deanna is being loaded, unconscious, into an ambulance. This is no longer a missing persons case, it's attempted murder. In the apartment, Shawn sees more cheap jewelry. The secret boyfriend must have been here. There are many pictures of Deanna, taken in the apartment. Shawn notices a trophy is present in all the pictures but is now missing from the shelf. Must have been the weapon used in the attempt on Deanna's life. Lassiter hauls Felix in and is convinced he has the right man after finding the bloody trophy in the suspect's car. But Shawn still has doubts.
Juliet agrees, and tells him that Felix's psychiatrists say he was completely rehabilitated. Plus he has a medical condition that has him on dialysis, which leaves a person too exhausted to stalk and attack someone. Felix is being framed. Juliet gives Shawn the police files on Felix's original break-in, and the one on Deanna's attempted murder, to see what he can "divine" from them.
Shawn takes the files to Henry who tells his son that police reports aren't gospel, they are just one person's view on what happened. Shawn looks at the crime scene photos from the attack and notices a discrepancy between the shadows in the pictures and how the shadows fell on the apartment wall when they was there - when the crime scene photographer was taking the pictures. Shawn and Gus go to back to the apartment at the same time of day they were there before. Shawn was right - the shadows don't match the pictures, not to mention all the clocks are wrong and a picture is missing. How is this possible? Shawn's figured it out.
He and Gus go to the police station, not only to tell them that they've figured out who the attacker is, but also that he is there in their midst. It's the crime scene photographer. He met Deanna when he photographed her house after Felix broke in. They had been seeing each other ever since, until Deanna started dating the other tennis player and wanted to break it off. The photographer went to her house, confronted her, and hit her with the trophy. He cleaned up all the evidence that he was there but when he looked at all the photos he'd taken of the crime scene, he noticed something in one of them that could incriminate him - his camera bag with his initials in a picture on the shelf. He had to go back and retake the crime scene photos, setting everything up the same way, even setting the clocks back to the right time - everything exactly the same minus the incriminating picture now missing from the shelf.
With the case solved, Gus is able to make it back to his company retreat before it's over, impressing his bosses so much with his attention to his ailing grandmother, they give him a lucrative new distribution route.