Perfect Nightmare — John Saul

When Lindsay Marshall mysteriously vanishes froi her bedroom during the night, her mother, Kara, fears the worst. Their neighbor Patrick Shields can easily relate to Kara's grief--he is still dealing with the pain of losing his wife and two children in a devastating fire. But heartache isn't all that draws Patrick and Kara together. He, too, senses the hand of a malevolent stranger in this tragedy. And as more people go missing, Patrick's suspicion, like Kara's, blooms into horrified certainty. Someone trolling this peaceful community--undetected an undeterred--harvesting victims for a purpose no sane mind can fathom. Kara and Patrick, alone and desperate, are determined to unmask the monster who even now is watching, plotting, keeping a demented diary of unspeakable deeds . . . and waiting until the time is ripe to make another fateful move.