When Syd Brixton was eleven years old, her identical twin vanished from a park in broad daylight and was never found.

Fast forward twenty years. Despite her lingering guilt, Syd has built an idyllic life. She has a great job at a popular pub. A beautiful home. A loving extended family. And best of all, a long-term relationship with a handsome firefighter who wants nothing more than to have children of his own.

Then it all comes crashing down.

One night outside the pub, Syd's favorite customer, Morley, is killed in a horrific accident. Moments before he dies, he gives Syd an extraordinary gift: the power to go back in time-and with it, the ability to learn the truth behind her sister's disappearance all those years ago.

But what if the truth is too painful to face? What if Syd would rather focus on saving Morley's life instead? Even against his wishes?

If she makes the wrong choice, she could lose everything ... her home, her family. Her life.

All in the blink of an eye.