S4 E16: Nicki returns from her European vacation with a French female lover, and Holly realizes she's the only woman in the group who hasn't been with another woman.
Newly single Stuart needs a new place to live following his divorce so he moves into an apartment with two bachelors, ladies' man Phil and homebody Haskell. The apartment is owned by Stuart's divorce attorney, Holly, who lives in the apartment across the hall. The bachelors initially have reservations about living with clingy Stuart. But, being across the hall, Holly is there to help avoid any catastrophes. Also in the mix is Holly's assistant, Eden, who has a habit of prying into her boss's personal life.