When two friends open a Halloween fun house on Devil's Night it is all fun and games until their former sorority sisters begin to arrive. These six sisters are confronted by their past as the night spins out of control.

On December 6, 1989, a lone gunman walked into Montréal's École Polytechnique, a post-secondary institution focusing primarily in engineering, and began a shooting massacre. This event and its aftermath are shown from the perspective of three people. The first is the shooter himself, who blamed the problems in his life on who he considered feminists, such as female engineering students, who were his primary targets. This event was the culmination of a seven year plan, which had a self-defined end. The second is female mechanical engineering student Valérie, who earlier that day had an interview for her dream internship, working on an aerospace project. The interview process itself was a disturbing one for her in the stereotypical view by the male interviewer, who did not believe that females could work in the business and still have aspirations to have a family. And the third is Jean-François...