When 18-year-old Shannon Siders' body is found in the woods, everyone in the small town of Newaygo, Michigan, becomes a suspect - but no one is convicted of the crime. It takes 22 years for a special cold case unit - along with the help of the entire town - to solve Shannon's murder.

Two unsolved murders of loved ones plague a family; detectives uncover a hidden crime scene that may help solve the 13-year-old cold case.