'Edgar-finalist Freeman's fourth thriller to feature Duluth, Minn., police lieutenant Jonathan Stride (after Stalked) may be his most ambitious--and accomplished--work to date. As the title suggests, even those involved in the closest relationships can be kept in the dark about a loved one's past. When a woman shows up in town and informs Stride that she's writing a book about the 30-year-old mystery surrounding the murder of the older sister of the girl who grew up to become Stride's spouse, he's forced to re-examine the validity of his bond with not only his late wife, Cindy, who died of cancer five years earlier, but also that involving his current love interest, a former Vegas cop turned PI, Serena Dial. Powered by darkly poetic atmospherics and deep character development (especially Stride, whose understated intensity, dignity and resilience are emblematic of the Twin Ports area itself), this harrowing and heartrending novel will leave readers guessing until the very last pages.' Publishers Weekly