When St. Paul Homicide Detective John Santana is assigned a cold case involving the murder of an environmental engineer, he begins to see connections to another case he once investigated--the murder of a young Native American woman. But in seeking justice for the victims, it soon becomes clear that someone wants to keep their deaths buried, someone very cunning... and very deadly. In his quest to hunt down the killer before he strikes again, Santana must deal with his own darkness and a conspiracy that threatens his life--and the life of the woman he loves.