Thomas and Marianne, a feuding couple whose relationship has hit a wall, decide to spend a weekend at Thomas’s uncle’s lakeside cottage. This is their last chance to save their relationship, which has been jeopardized by Marianne’s meaningless flirtations and Thomas’s uncontrollable jealousy. As they arrive, a restless yet charming neighbour welcomes them into their house and, realizing that Thomas’s uncle and girlfriend will not be showing up for days, suggests they share the dinner he has prepared. The drunken night that follows – with this man, who might not be who he seems to be, pushing his charms on Marianne – leads to a weekend of blurred emotions and events, where loyalties, guilt and a shared secret will test the young couple’s ability to survive.
　　Along the way, flashbacks shed light on events that unfold, as Demers – who won the prize for Best Canadian Short Film at the Festival in 1999 for Décharge – begins to introduce information about each character in order to build doubt and ramp up the tension. Jaloux is a tour de force in both its European mood and style and its North American subject and nature, a result which could not have been achieved without the self-assured skills of an expert filmmaker.

　　布鲁诺（Claude Legault 饰）和西尔维（Fanny Mallette 饰）是一对感情十分要好的夫妻，两人养育着乖巧可爱的女儿杰斯敏（Rose-Marie Coallier 饰），生活很是平静与幸福。无奈天降横祸，一次意外中，杰斯敏竟然被一变态凶手玷污并且杀害了，面临着巨大的打击，布鲁诺和西尔维的精神都到达了濒临崩溃的边缘。
　　尽管最终凶手被警方捉拿归案，但布鲁诺心中的愤怒却并没有因此而有半点减轻，法律可以惩奸除恶，却并不能为布鲁诺带来救赎，一个念头在他的脑海中诞生了。布鲁诺绑架并囚禁了凶手，在未来的七天里，他决定对其施加肉体上的最大痛苦，最后手刃仇敌。可是，仇恨真的能够因此而消失吗？在给予敌人痛苦的同时，布鲁诺也如同身处地狱之中。