The greatest days of Heather Matthews' life have taken place in Delta County. Unfortunately, so have the worst. Ten years after an unspeakable tragedy took the lives of the two people she loved the most, Heather returns to her hometown for a class reunion with her high school sweetheart, who is now her husband. Just when she recalls all the reasons to love the idyllic lakeside town in Michigan's Upper Peninsula, her life is once again turned upside down. Heather must push her grief aside and investigate the events that occurred the night of the reunion. The process will also have her questioning everything she she knew about the tragedy ten years prior.