When Ylva, a loving mother and wife, fails to come home from work, her husband is not initially suspicious. But as time passes he becomes frantic with worry. And by the time he finally contacts the police, he is almost hysterical. Given the mysterious circumstances of her disappearance, he becomes the number one suspect.But what no one knows is that she's being held hostage in the cellar of the house opposite her own.A camera is rigged against her house and Ylva can only watch her family on the screen. They cannot see her - and they most certainly cannot hear her scream...