
"Old Christine" (Julia Louis-Dreyfus) is a divorced mom who has a handle on her career and motherhood -- and a pretty good relationship with her ex-husband -- until he introduces his new girlfriend, a younger woman, also named Christine. Old Christine lives with her son and her brother, and runs a gym, and her life is a constant struggle to keep up with everyone else.

Relief at meeting another working mother at her son's school vanishes when Christine learns where the woman actually works.

After a chance meeting, Christine finds she still has feelings for an old boyfriend (Matthew Letscher).

Since New Christine broke up with Richard, he's been spending a lot of time at Old Christine's house, leading Ritchie to believe that his parents are back together.

When Christine meets a good-looking man after paying a surprise visit to New Christine, she decides to break out of her mold and says yes when he asks her out to dinner.