Five small children vanish from their nursery school picnic. Three-and-a-half years later, in the dead of winter, the children are returned by their abductor. One by one.All except for one last child. Ivy.Ivy is the granddaughter of homicide detective Kate Wakeland. Speculation grows that the kidnappings were revenge for a murderer Kate put behind bars years ago.Kate was prevented from pursuing the mysterious kidnapper of the children back when they were first stolen. The superintendent refused to put her on the strike force.But now there is no stopping her.