Whatever the problem, they'll always end up sitting or lying on a psychiatrist's chair, talking about themselves and what their dreams symbolize for an implied hour until the shrink says something profound that leads to a life-altering realization. It's mostly stuff about the character's mother, and wanting to bang her.
Sometimes the psychiatrist even becomes a permanent member of the cast, offering insights into the psychosexual stages of childhood or quipping about Freudian slips (like in Bones).
The Reality Today:
How many times have you heard a movie psychiatrist say "Our hour is up" when there's still so much to talk about? If you've actually been to one, however, you know that most psychiatrist appointments in America today last only 15 minutes ... and don't involve a lot of talking.