Filmed over a 10-year period, Steven Avery, a DNA exoneree who, while in the midst of exposing corruption in local law enforcement, finds himself the prime suspect in a grisly new crime.Filmed over a 10-year period, Steven Avery, a DNA exoneree who, while in the midst of exposing corruption in local law enforcement, finds himself the prime suspect in a grisly new crime.Filmed over a 10-year period, Steven Avery, a DNA exoneree who, while in the midst of exposing corruption in local law enforcement, finds himself the prime suspect in a grisly new crime.