Charlie and Kate go to Charlie's sister's baby shower even though he hasn't seen her for ten years, and the group is convinced that Ed's daughter is a lesbian.
Charlie is interested in dating a sexy ex-patient after the five-year mandatory waiting period runs out, but he soon finds out that some of her other former therapists have the same idea.
Charlie comes down hard on his dad after he turns out to be a bad influence on his new friends. Meanwhile, Lacey helps Patrick out with an old high school bully.
Charlie runs into problems after Cee Lo Green hires him as his personal therapist, and things unexpectedly heat up when Lacey hires Nolan to be her photographer.
Lindsay Lohan hires Charlie to be her anger management therapist on the set of a commercial, but Charlie winds up sleeping with her and gets her in trouble after the paparazzi get a hold of it.
Charlie may be forced to move the therapy group out of his house after Lacey gets into a fight with one of his neighbors, while Kate goes with Jennifer to help find a dress for Sam.
Charlie gets Nolan a job with Kate, and uses him to spy on her when Nolan discovers an envelope with dirty pictures in it. Meanwhile, Charlie has a support group created in prison for Lacey.