While the worst winter to hit Britain for decades paralyses the country, a brutal killer is targeting teenage girls.

Down beside a lonely stretch of river, Jimmy Marshall witnesses the first of the murders take place. Powerless to stop it, Jimmy tells himself there was nothing he could have done.

But now, a second victim has been discovered.

And a third.

The police suspect Jimmy knows more than he's telling, and the criminal family of one of the victims wants answers by any means necessary. As Jimmy desperately tries to uncover his connection to the violence, the anniversary of another terrible event rapidly approaches within the howling winds and blizzards.

Born in the snow and the ice, something monstrous connected to Jimmy's past is reaching a grasping hand into his present. Caught up in a hell twenty years in the making, Jimmy has three days to find an inhuman murderer before the white of the nation's winter runs red with blood.