Unfolding in the style of the film Sliding Doors , 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; 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. 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.
Spoilers ahead. Coverage follows the scope labeled below.
Complete story — includes the ending
Shawn isn't sure what to do next after Juliet finds out that he is not psychic, but he has a bigger problem on his hands when the taxi he's in narrowly avoids hitting an injured Swedish woman ( Lauriane Gilliéron ), giving him a head injury in the process. As he investigates from there, a string of murders is revealed, but Shawn plays it out from two scenarios, the second being what would've happened if Juliet never discovered the truth. In the end, it is Juliet who crushes Shawn further when she orders him to move out.