Right Turn or Left for Dead

We come up on Shawn, lying down in the Psych Office, wondering what just happened at Lassiter's wedding. Did Juliet really just find out he wasn't a psychic from a piece of paper she found in his jacket? Or was it all just a horrible dream? From there, the episode unfolds in the style of the film "Sliding Doors," as Shawn experiences two separate timelines set off by a "what if?" scenario. One timeline shows what would have happened if Juliet never found out that Shawn wasn't psychic; it shows them happy, in love and thinking about the next step in their relationship. The other timeline shows what really happened -- that Juliet did in fact find out Shawn wasn't a psychic. Throughout the episode, Shawn, Gus, Juliet, Lassiter and Chief Vick follow the same murder case in both timelines, and arrive at the same conclusion in both timelines, but the investigative beats they each take to get there are presented differently.