In Montreal, the teenagers Manon, Anne, Isa, Claudie and Sophie are friends since their childhood. While spending a couple of days in the cottage of Sophie's parents nearby a lake, the girls decide to give a party, and Manon and Sophie hitch for a ride to the town in a jeep to buy some beers and supplies and they invite the driver to the party. On the return, the same driver stops the car and later Sophie is found stabbed, raped and covered of blood. Fifteen years later, Manon sees the guy in a car-wash and she invites her former friends to return to the house nearby the lake, where wounds of their traumatic loss are disclosed.

Jean-Charles has an unusual relationship with his mother. He can't break free of her influence even when writing his master's thesis, made up of interviews with the several hundred men who have slept with her. Jean-Charles can identify -- he's one of them. But the incestuous bond between mom-and-son is jeopardized when Jean-Charles meets Cassandra, and Mom shifts her attentions to a hot young stud in retaliation.