Marta and her daughter Nina move to Malanotte, a small mountain village. The little girl has been suffering from hypnagogic paralysis for some time, a sleep disorder which can lead to hallucinatory states, and Marta thought that a bit of mountain air and distance from the frenetic rhythm of city life might benefit the little girl. However, the house they move into is anything but welcoming, and children are never seen playing in the streets of Malanotte. Nina's symptoms begin to worsen from the very first night in the new house, and the little girl has more and more vivid nightmares in which a ghostly figure sits on her chest, immobilises her and steals her breath. For Marta, a single mother in a place she finds increasingly sinister, it will become harder every day to know what is best for her child.