生死环线

A group of tired commuters have caught the last train home, ready to hop into their beds for the night. However, their train soon veers off-course and crashes into an abandoned tunnel. The three survivors: withdrawn mother Yi Ling, her son Lucas, and student Janice, are forced to band together and survive the night, as well as avoid the mysterious monster hunting them. Yi Ling still suffers from flashbacks to the car accident that killed her husband and nearly took Lucas` life too. When Lucas is snatched away by the monster, her maternal instincts are tested, and Janice`s ideas of family are challenged as she remembers her difficult relationship with her estranged father. Back at the subway control headquarters, the engineers do their best to make sense of the situation and rescue the survivors. Meanwhile, Janice struggles to reconcile her feelings towards her father and decides to confront him about his behavior. She finds him in a darkened room and demands answers. As the night wears on, the survivors face various challenges, including finding food, staying warm, and avoiding the monster`s attacks. They also struggle to trust each other and form a cohesive unit. In the end, they manage to escape the tunnel and find help from the authorities. As they reunite with their loved ones, they realize the importance of family and the strength they can achieve when they come together.