In conservative West Orange, New Jersey, the Ostroff and Walling families are very close. David Walling and Terry Ostroff are inseparable best friends and run together everyday. David has problems with his wife, Paige. He frequently sleeps alone in his office. Their daughter, Vanessa, is frustrated because she has not succeeded in her career as a designer. Their son, Toby, is moving to China on a temporary assignment. Terry's wife, Cathy, ignores him. Their daughter Nina moved to San Francisco five years ago. Near Thanksgiving, Nina's boyfriend Ethan betrays her at his birthday party and Nina returns to her parents house. Nina argues with her mother and draws closer to David. Soon they have an affair and fall in love, turning the lives of the people close to them upside-down.