Chopin, the dog that Stuart lost custody of in his divorce, stays over. Phil then accidentally switches the dog with a look-a-like, after having a one night stand with another dog owner. Holly suspects that Eden is having an affair with their married boss, Mr. Hubner (James Morrison), and is even more convinced when she discovers that Eden is pregnant.
Holly offers to help Stuart impress his ex-wife, Lorna (Janet Varney), at a ballroom dance contest, but it turns out Holly is no help at all. Adding insult to injury, it appears that Lorna and her partner (played by Dancing with the Stars pro Maksim Chmerkovskiy) are the favorites to win the competition. Meanwhile, Phil meets his female match, Kendra (Garcelle Beauvais), who beats him at his own game.
Stuart and Holly convince Margo to hold her wedding at the restaurant; Haskell tries to stop the wedding of Margo