年末的横滨消防通信指令中心异常繁忙，事故、疾病、火灾与各种纠纷不断。此时，是否引入“AI指令员”取代人工的议题引发内部对立。除夕夜突发大规模停电，全市混乱、报警激增，指令员们在极限状态中持续接警与指挥救援。作品描绘他们直面困难时坚持工作的理由，以及“拯救他人”这一行为的真正意义。城市陷入黑暗，他们必须用仅存的“声音”守护生命。
The film opens in a bleak police station where celebrated war correspondent Kate Rafter (Seagrove) faces questions from a psychiatrist, Dr Shaw (Kurylenko), as they work through the painful events of Rafter’s life. A horrific incident in war-torn Iraq and the death of her mother (Steed) have brought a haunted Rafter home to Herne Bay, a place she believed she had escaped forever. Her resentful sister (Friel) has not made her sister welcome and her forbearing husband Paul (Miles) fails to broker peace. Whilst packing up her mother’s belongings from her childhood home, Rafter comes to believe there is something strange and terrifying happening in the house next door.
A family's perfect Christmas reunion is upended when old rivalries, secrets, and romantic mix-ups come to a head.
