In the quiet of a snowed-in holiday home, siblings Holly and Danny find themselves alone and bored. As the day wears on, their glances grow heated, and they retreat to separate corners of the house. Holly, in her room, strips down to her lacy underwear, teasingly touching herself. Meanwhile, Danny, in the study, unzips his pants, stroking his growing erection. The house creaks, and they find each other in the hallway, both breathless and exposed. They tumble into the guest room, Holly's moans filling the room as Danny pounds into her, their holiday tryst ending only when they hear the front door open.