In this period thriller set near the turn of the century, Jan Thoreau is a Canadian trapper who lives with his wife Marie in a small community in the wilderness not far from Hudson Bay. Blake is a disturbed drifter who has murdered a man and has found a way to frame Jan for his crime. Jan is out tending to his traps when an Indian friend with psychic talents tells him Marie is in grave danger. Jan hurries back, but he has no idea just how serious matters are until he arrives home -- Jan is wanted by the law for a crime he didn't commit, while Blake is hiding out in his home, and has taken Marie hostage.

Canada, Février 1906. François Bréault, le convoyeur du courrier est assassiné par un tueur fou. Le tueur laisse un message sur le mort avant de faire partir son corps sur le traineau, "Yan Thoreau m'a tué".