Based on actual events of American serial killer Edmund Kemper, who murdered his grandparents at age 15 and, after being paroled for that crime, killed eight women in 1972 and 1973 including his own mother.
A young couple on a road trip find their car stalled in the middle of a snowy forest. A person offers to help and situation soon turns for the worse and things start getting weird and spiral out of control.
