41-year old Cassandra Mackerel is loved up and happily re-married to new husband Jamie. Together they have a ready-made family and a six-month-old baby boy. Juggling her own children with step-children and an infant is both hectic and stressful, especially with a mother-in-law who seems to have taken up permanent residence. The last thing Cass needs is the reappearance of husband Jamie's ex-girlfriend Selina. Gorgeous and glamorous but utterly unstable, Selina once stalked Cass and contrived to split her and Jamie up. And now Selina is engaged to Jamie's business partner, Ethan Fareham. Seemingly it is appalling coincidence. Cass can't shake the feeling that Selina is up to her old tricks. And she's right to be worried. For if Selina has her way, she'll split Cass and Jamie up permanently