Five years ago Mackenzie Darroch was abducted and held captive in a derelict house. She thought she'd found her way out of the darkness. She was wrong... When Mackenzie witnesses a car crash and saves the driver's life, it sets in motion a chain of events that will alter both their futures. The two women get involved in a high-profile police case which draws the attention of a ruthless reporter. Gina Calvi is convinced Mackenzie is not who she appears and is prepared to do anything to prove it. Meanwhile, across the city, Kirsty McBride, a young single mother, is persuaded to leave a violent relationship. Her partner, Malkie Boyle a Glasgow hardman, is due to be released from prison. Once back on the street and bent on revenge, Boyle is determined to find the people responsible for stealing his family from him. Can Mackenzie save them or will Boyle get his revenge?