Peyton Shields had always wanted to be a doctor, and
now, thanks to her relentless drive, stellar academic
credentials, and a mountain of debt to Harvard Medical
School, she's a first-year resident at a major Boston
children's hospital. The hours are impossibly long, but it's
the life she wants, complete with a husband who's an
up-and-coming young lawyer.
But a late-night drive
home in a heavy snowstorm changes everything. A car coming
straight at her forces her off the road and into a frozen
pond. Peyton knows she'd be dead if a stranger hadn't pulled
her from the wreckage before vanishing into the darkness.
In an instant her wonderful life has turned dark.
No one believes her claims that the "accident" was
deliberate—not even her husband. Without explanation, he has
become distant and bitter, calling her paranoid and accusing
her of having an affair with a former lover.
Yet
the terror has only begun, for a series of strange,
increasingly dangerous events begin to plague Peyton, moving
her closer to a faceless and very deadly enemy who seems to
know her every move.