The Argyle family has gone through a bit of a rough patch. The mother, Rachel, had been brutally murdered in their home. Jacko, the black sheep of the family, was convicted of the murder, and died in prison six months later. The family learns to accept the sad truth and move on.
However, the old wound is torn open a year and a half after Jacko's death by a visit from a man named Arthur Calgary. Calgary is able to provide Jacko with a perfect alibi for Rachel's murder, proving him innocent. Thus, the Argyles must face the terrifying truth: the murderer is still among them.
It's a catchy hook, so it's too bad the book isn't actually that exciting.
