Microbiologist and ice diving specialist Hallie Leland arrives at a remote research station at the South Pole. This is the most dangerous place on Earth, where hurricane winds blow, deadly cold reigns and impenetrable darkness reigns. Hallie will have to help scientists complete the scientific work begun by her friend Emily Durant, who died allegedly from a drug overdose. On the first night of her stay here, Hallie accidentally finds video files in Emily's room with recordings made by a hidden camera. From them it becomes quite obvious that Emily was killed. But Hallie has to keep quiet about it because she doesn't know who to trust. And then, one after another, three more women die. The station is plunged into panic, paranoia and an atmosphere of hostility...