Julia and Mark are stuck in a loveless relationship. Julia thinks a baby will help, but perhaps that isn't the answer to her problems. Maeve is totally allergic to commitment - she breaks out in a rash whenever she passes a buggy. A one-night-stand results in an unwanted pregnancy. But just how unwanted is it? Samantha is besotted with her new-born baby. But how is husband Chris coping with his suddenly unavailable wife, and is Samantha's obsession as healthy as it seems?