Charlie picks up a woman at prison, unaware that she is the sister of one of his most violent patients. Lacey secretly puts on a strip show for Nolan
Charlie upsets his neighbors by meeting with his clients at home.
When Lindsay Lohan comes to Charlie for therapy they begin a tumultuous relationship.
Charlie makes an unpleasant discovery about Jennifer's business partner
Charlie and his dad (Martin Sheen) get into it when Martin has Charlie's daughter Sam baptized behind Charlie's back.
Charlie and Kate face off as expert witnesses in the same trial.
Charlie dates his daughter Sam's teacher.
Charlie tries to help his patient Ed (Barry Corbin) with a placebo pill that's supposedly reduces anger.
Jennifer moves in with Charlie temporarily and Kate gets jealous.
Charlie's dad falls in with a bad crowd.
Charlie begins a questionable romantic relationship with an ex-patient.
Charlie isn't sure if his father Martin is developing Alzheimer's.
Charlie blows up at his sister's baby shower.
After Charlie and Kate have sex he innocently asks her if she wants to go to a movie. Kate interprets this as a romantic gesture rushes to fix him up on a date the next day with someone else and the two are forced to exam the nature of their odd relationship.
Inflamed by Kate's comment that he's only "nouveau smart" Charlie starts covertly dating a brilliant coffee-shop barista. The only problem is that the woman is turned on by sex where there's a chance of getting caught -- and she's Kate's patient.
The new "evolved" Charlie has to deal with a ghost from his old carousing baseball-playing days when a unattractive woman he slept with just to break a batting slump shows up as a new patient in group therapy.
Charlie intervenes in Kate's sex life. Meanwhile, Martin offers relationship advice to Lacey.
Charlie and Kate are ready to sleep with the right people to get funding for their sex study.
Charlie is held hostage during a prison riot.
Charlie becomes jealous of Jennifer's new boyfriend. Meanwhile, Patrick helps Lacey prepare for a modeling gig.