They find out from Juliet that all the victims called the stress line many times in the days before they died. Juliet says that just proves they were all troubled people, who in the end took their lives but Shawn thinks itís even more proof that something weird is going on. Someone at the stress line must be killing the callers and making it look like suicide.
At the stress line, they meet a volunteer named Rory, who wears eyeliner and is working there as community service on an assault charge. At the same time, Lassiter and Juliet are running backgrounds on all the volunteers there. One in particular catches Lassiterís eye. Turns out, he was the one who arrested Rory in the first place.
The police arrive and arrest Rory for the murders. But as heís defending himself, Shawn notices a guy from the phone company outside. This triggers memories of several encounters with a phone technician in the past week. So as Gus is thinking Lassiter has bogarted their big reveal, Shawn is now rethinking their suspect.
When they head outside to catch the phone guy, they find heís gone, but in his haste, heís left his receiver behind. With it, he could listen to the incoming calls into the line. Plus, all the dates of the murders coincide with when he was working on the phones. It all fits. They check the last number on the receiver to find his next victim. Itís McNab!
They call the police and race over to McNabís to stop the killer, who turns out to be Wes Hiltonbock. Wes didnít kill his brother, but he did watch him throw himself off the roof. He was angry that he was weak, and became angry at everyone else who was weak, everyone who called the stress line in need of help. The tense stand off between Wes and the cops ends with some timely heroics by the cat, which Shawn generously gifts to McNab as a wedding present.