Jocelyn "Joss" Bright is a woman in her forties. She has devoted her life to her surgeon husband and her two children. She lives in an affluent neighborhood in a North Carolina city. She wants for nothing. So why does she feel so empty?
While she has been faithful to her husband, she has had thoughts about the handsome and fit Pilates instructor at her gym. Her best friend and next-door neighbor, Charlene "Charlie" Beauregard, eggs her on, but Joss' guilt at even thinking those thoughts feels like cheating to her. Her life has become routine. She and her husband exchange the same hollow pleasantries, in the same way, every morning. One day bleeds into the next. Monotonous. Boring. Stifling.