For newly widowed Lucy Greene, each day is a blur of isolating sorrow. Until a sinister midnight prowler shocks her out of her numbing grief, plunging her into a harrowing world where nothing makes sense, least of all her scientist husband Carl's so-called accidental death. But why did Carl contact Lucy's high-school sweetheart Kevin, a recently discredited TV journalist, just a few days before he died with promises of a big story? Why does an intruder...