Tara transitions into her psychiatrist alter Shoshanna in her Abnormal Psychology class and is humiliated by her professor; Max considers an offer to sell his business to a competitor, which would put his best friend Neil out of a job just as he's moving in with Charmaine; Kate considers an opportunity to teach English in Japan, which thrills neither of her parents.

Tara and Charmaine are rushed to the hospital in the same ambulance, where Charmaine declares her baby off limits to her crazy sister; Tara attempts to make a deal with her alters, which intrigues her Abnormal Psychology professor; Marshall, Lionel and Noah put Charmaine's empty house to some creative uses; Kate is embarrassed to confess that she backed out of going to Japan.