On this episode of Perception...
Daniel's sanity is called into question after he is accused of stalking Caroline.
Turns out, it was someone at the hospital who was infatuated with her and killed her boyfriend.
Donnie gets a job elsewhere, but Kate asks him to stay.
After parent complaints about his schizophrenia, Daniel quits his teaching job. He heads to Paris, where the FBI there interrupt him to ask for his help in a case.