After receiving a substantial inheritance, thirty-seven-year-old aspiring writer, Theresa, moves to the High Country of Victoria, Australia, to finally write the novel she had always planned. Here, she meets and marries Rick Goodman, a former TV star and local entrepreneur.

More than a decade her senior, Rick is charming and successful, and the most lovingly attentive partner Theresa has ever had. He encourages her dreams to write a novel and rekindles her long-forgotten desire to have a child. Life on their idyllic Alpine property is bliss, until Rick gets a text message from his ex-wife, Anita, the glamorous daughter of a wealthy TV producer. Rick tells Theresa that Anita has run off overseas with her new boyfriend, and that they must care for his teenage daughter, Chloe.

While her efforts to bond with her bewildered and resentful stepdaughter fall flat, Theresa is overjoyed when she finds herself pregnant. But as months go by with no word from Anita, Theresa's search for answers leads her to the women in Rick's past, and she must uncover the truth about their lives, in time to save herself and her unborn child.