What film is about a psychiatrist driven into catatonia by a patient taking "baby steps" to improve?

such an under appreciated film

AutumnalCrust12, richard went from being a little overwound to completely unhinged scene by scene twitch by twitch.he was brilliant.like pink panther

loved the goldfish!

slomogeo, you put it perfectly

One of the funniest movies ever!

I was in graduate school for counseling psychology at the time that came out and it gave me nightmares

Cookie Bean, This is my favorite movie. I didn't see it for many years because I wasn't too fond of Dreyfus, but once I did, I loved it!

Guillermo, He says of his goldfish, Gil, "He's been in there for 8 hours, he's ready to scream!"