Edge of Madness -- Film Description:
"Emerging from the elemental forces of a fierce 1853 winter, alone in the wilderness, 18-year-old Annie McKillop arrives in the town of Walley, Ontario, barely alive, starved and half mad from her near-disastrous struggle for survival. Upon being confronted by James Mullen, the clerk of the peace, she confesses to a murder, eventually acknowledging that the victim was her young husband, Simon Heron. While locked up in the local jail and under the investigation of Mullen, Annie gradually unravels her story as she remembers it, trying to determine her own role in what happened. Edge of Madness, which is based on the short story 'A Wilderness Station' by acclaimed Canadian writer Alice Munro, is a taut period mystery, literate and character-driven, authentic to its time period but told in a contemporary cinematic fashion."
-- Telefilm Canada

Source:
"Telefilm Canada: Catalogues: Edge of Madness" Telefilm Canada. http://www.telefilm.ca/en/catalogues/production/edge-madness.