Christophe, since the death of his wife three years earlier, has become a dad who controls everything in the life of his son Victor. When the latter has to go to a holiday camp in the snow for Christmas and one of the guides withdraws at the last minute, Christophe becomes encrusted. Marina, like Victor, are moderately excited. Christophe is reassured until the moment when a mysterious gift falls on him: he can hear the thoughts of teenagers, including those of his adored son. His tidy life then turns into a nightmare...