Shawn and Gus crash a crime scene of an apparent suicide. One of several in the last few months. This one was an overdose of pills, or so it seems. While in the apartment, though, Shawn notices a few things that might point more toward murder. When no one believes his psychic vision of foul play, he insists he's not leaving until he talks to the witness - the victim's cat.

Dr. Blinn, a Santa Barbara psychiatrist, has been murdered in his office. Shawn and Gus show up at the crime scene and are promptly removed by Lassiter, but not before Shawn gets a quick look around - blunt force trauma to the head, the weapon and a chewed toothpick next to the body.