In Montreal, one muggy summer evening, where jazz goes hand in hand with sweat and crowds, Yves kills Claude and surrenders himself to the police. The inspector who leads the investigation will try to piece together the facts and clarify the motives that led a prostitute to kill one of his lovers. Behind the news item hides a quest for identity, an inner questioning. Through Yves we will reconstitute the facts, but also will feel the emotions which for weeks, months or years have led this passion to the inevitable outcome.