Five years ago, Nicky was on holiday with a group of friends when her best friend Grace was brutally murdered. No one was ever charged with this terrible crime and Nicky in her grief sought solace in the arms of Grace's widower. They're now married but he is often out of the country for work, and when Nicky meets Adam, who is young, good-looking and obviously interested, she's tempted. But what starts as an innocent flirtation leads to a terrible ordeal, and a dark secret. A secret that involves her husband, and Adam, and what happened to Grace all those years before. Nicky finds herself fighting for answers. But, when love is worth killing for, the price paid for the truth can be very high indeed...