Trouble begins to brew for Sherri (Sherri Shepherd) when the topic of trick-or-treating as a family comes up. Sherri is upset when she keeps running into Kevin's pregnant girlfriend Paula (Kate Reinders) everywhere she goes. Paula reveals that she has been trying to follow in Sherri's footsteps because Kevin says she's the best mother ever. Meanwhile, when Celia (Tammy Townsend) and Angie (Elizabeth Regen) learn that Summer's (Kali Rocha) birthday has always played second fiddle to Halloween, they surprise her with an office party.