Kathleen "Kath" Day is the mom, a foxy, 40-something divorcée who finally has time for herself and her valiant search for love. Her daughter, Kimberly "Kim" Day, is in her mid 20’s but dresses like a teenager, constantly eating as a way to console herself, and is obsessed with celebrities. When Kim decides to move back home after separating from her husband, Craig, who works at a Circuit Surplus, Kath reluctantly agrees -- but to Kim's chagrin, Kath is not about to cater to her every whim as she has in the past.
Also making their lives complicated are their significant others. Phil Knight, Kath's boyfriend, is a decent but dorky man in his mid 40’s who owns a sandwich shop at the mall food court and has a difficult time getting along with Kim no thanks to her disapproval of her mother's relationship. Kim's husband, Craig Baker, has his hands full trying to deal with her dominating personality which explains their separation.