Susan Lentigo`s daughter was murdered twenty years ago - now, at long last, she will witness the killer`s execution. But on her journey she discovers shocking new evidence that suggests the condemned man is innocent - and the real killer is still out there. Even worse, her new suspect has a young daughter who`s at terrible risk. The FBI refuses to reopen the case. They - and Susan`s own mother - believe she`s having an emotional breakdown. With no money or time to waste, but with the help of two unlikely allies - a cynical teenage girl and the retired cop who made the original arrest - Susan sets out to win justice for the condemned man and her daughter.