A mentally disturbed man named Jérémie is scouring the area in search of women he can strangle with his scarf, which is embroidered with an ibis.
A group of policemen look over three murder cases including a cutthroat that prays on young women, a madman that hid his deformed landlord's corpse in the floor, and a wine aficionado who buries his friend alive.
Story of a marginal couple, César and Favouille, who set out to find their youngest daughter, who run away from home.