During the ice storm that hit Quebec in 1998, the inhabitants of the region known at the time as the Triangle of darkness, experienced an unprecedented power outage. In the depths of winter, the absence of heating quickly gave way to mutual aid and human warmth, suggesting that in Quebec, loneliness could be more dangerous than the cold. The film sketches the portrait of a woman and an old man whose precariousness usually remains invisible, but which the crisis situation reveals. Triangle of Darkness tells the story of how the woman tries to reproduce the human warmth that has so much marked the collective imagination of disaster victims.