Pisaura family lives in a isolated house in the middle of the forest. Louise is an artist. Being overwhelmed by her work, she doesn't sleep well. Her wife, Emilie, is a psychiatrist. In order to give some relief to Louise, she decides to suspend any engagement for the next days. Meanwhile, she takes the opportunity to get closer to their son Alex, who seems to not be in good health. When accidentally bitten by something, Louise gets haunted by terrifying dreams. In those nightmares she sees Alex gets his blood drawn by someone. She gets so tired that she starts having disturbing hallucinations. After many nightmares and visions, Louise matches dreams with reality and understands that her son is in danger.