What would you do if someone else's secret past threatened to destroy your own future happiness?

For the first time in months Emily is excited about life, until a fun-filled weekend on Dartmoor with her children turns into a nightmare and she accidentally finds herself in the wrong place at the wrong time. She returns home, desperate to forget their frightening ordeal, but it soon transpires that someone else has other ideas. Before she knows it, she is embroiled in a terrifying web of crime.

As the buzz and excitement of the 2012 Olympics grip the country no one, not even the police, believes her version of events and Emily has no option but to take matters into her own hands. In a race against time, she realises that a class of 1987 school reunion - which took place just days before her fateful visit, with devastating consequences - is key to finding out what really happened.

Not knowing who to trust, Emily's life spirals out of control, but she will stop at nothing to unravel the truth... and ensure what should have been an idyllic weekend doesn't become a lifetime of regret.