Just before Christmas, the body of a young mother is found strangled inside a burning car in a quiet Minneapolis suburb. As detectives hunt for her killer, they become convinced she was killed by someone very close to her.

When a mother and her two daughters fail to show up for Christmas dinner, officers enter their home and discover all three have been shot to death. The search for their killer reveals an unthinkable family nightmare.

Just before New Year's, a hockey mom is gunned down at her front door. Later that night, seven more bodies are found in another suburban home. Police discover a shocking connection between the two crimes as they track down the killer.