All Fall Down

"You have one hour to live." Those are the only words on the phone call. Then they hang up. Surely, a prank ? A mistake ? A wrong number ? Anything but the chilling truth ...that someone is watching, waiting, ready to take your life in one hour. But why ? The job of finding out falls to a woman with a track record in hunting killers : DI Helen Grace. However, this is a case where the killer seems to always be one step ahead of the police and the victims.
With no motive, no leads, no clues - nothing but pure fear - an hour can last a lifetime...