Childhood friends Juliet, Rebecca, Rose and Matthew grew up in a small village outside Dublin. Now privileged, wealthy and powerful, they appear to have it all. But when Juliet is involved in a suspicious accident and lies trapped between life and death at the bottom of a cliff, a secret that has been hidden for years threatens the seemingly perfect lives of the close-knit group.
For the beautiful, fragile Rose, Juliet's accident brings unwanted attention on the sins of the past. For her husband, the ruthlessly ambitious Matthew, it removes a critical obstacle from the path of his political career. As Rebecca discovers more about what happened to her friend, she begins to wonder if she ever knew the real Juliet Jordan.
Rebecca's troubled young daughter Danielle, hiding out in Rome, knows a truth that can shed light on what happened. But as secrets are revealed, the childhood friends are about to discover that, sometimes, old friends are the ones you know the least.