No one you know tells us the story of Ellie Enderlin, whose life has been overshadowed by the murder of her younger sister Lila in 1989. Although Ellie is successful, travelling as an international coffee buyer her private life is less so, her boyfriend having left her and moved away and it seems that the tragedy of her sisters death is the main reason she hasn’t been over to find happiness herself. There is no doubt that the loss deeply affected her and her family and that this was in part due to the part played in the publishing of the book about the murder, that Ellie was unbeknown to her the inspiration for, having formed a friendship with the author.
Younger sister Lila was somewhat of a mathematical prodigy, her closest relationship with numbers, but at the end of her life it seemed she had formed a relationship unfortunately with a married man and it was he who was pointed at as the main suspect in her murder, but no-one is ever charged and the murder remains unsolved.
When Ellie unexpectedly is reunited with her sisters notebook missing since the day she was murdered, she starts on a path towards finally solving the mystery of her sisters murder. The book perfectly combines all the expected twists of a murder mystery with the emotion of someone dealing with the tragic loss of someone close to them, and the weight of guilt at being the one who survived.