One left alive (engelsk)

When the body of a woman is found hanging from a tree in her garden, rookie Detective Morgan Brookes is first on the scene. Olivia Potter is past saving. And when her husband and daughters cannot be traced, Morgan knows there is more to this tragedy. And then she finds them lying huddled together in the dark basement. But every clue about the murdered family leads to a dead end. Until, trawling through old files, Morgan discovers a link to a cold case from years ago.