You'd think a day when your whole life changes should be marked in some way. But for Emma, it wasn't. She had been celebrating her hen night, a low-key evening out with friends, when the car accident happened. Though Emma survived, her memories are hazy. Sometimes she can hear snatches of her friend's screams, or smell the fumes of petrol. Most of all though, she sees the shadowy man who saved her life. No-one else saw him. But he was definitely there. And as he pulled her from the wreckage, he promised he would always stay right behind her. But where is he now? As Emma prepares for the...

What would you do if life gave you a second chance? The night of the accident changed everything... Now, five years on, Rachel's life is crumbling. She lives alone in a tiny flat, working in a dead-end job, desperate with guilt over her best friend's death. She would give anything to turn back the clock. But life doesn't work like that... Does it? The night of the accident was a lucky escape... Now, five years on, Rachel's life is perfect. She has a wonderful fiance, loving family and friends around her, and the career she always wanted. But why can't Rachel shake the memory of a very...