On a snowy night near Baldwin, Wisconsin, in the mid-1980s, a car leaves the road, killing one local girl and sending her best friend to the hospital with a traumatic brain injury. Sheriff Jeff Sanderson, with help from his computer whiz ex-wife, his wisecracking new deputy, a flirty diner waitress, and a local high school hockey star, looks into the accident and begins to wonder if it really was just an accident.