Mia Haas has built a life far from the North Dakota town where she grew up. Then she receives word that her twin brother is missing, and is forced to return home. Once the golden boy of their town, now a popular high school teacher, Lucas Haas disappeared the day the body of one of his students was pulled from the river. Trying to wrap her head around the rumors of his affair with the teen and the media's portrayal of him as a murderer, Mia is desperate to find another suspect. All the while, she wonders: If Lukas is innocent, why did he run?