15-year-old Margaux finds out about her attractiveness and the early stages of sexuality, all in the same time as she tries to escape from a monstrous creature stalking her daily.
Candice, a 9 year-old girl, lives alone with her mother after the divorce of her parents. As the little girl's birthday approaches, she starts to see her mother turn into a strange and hideous creature.
Capucine, her sick mother and Eugénie hit the road to try to escape the radioactive cloud that is heading straight for their little town.
