A missing person case forces three girls from different walks of life to face life-altering choices, exposing the ups and downs of an ordinary family. The story intertwines the light and dark sides of the city—above ground and in the underground tunnels. As one girl navigates these challenges alone, she uncovers the truth, finds redemption, and moves toward a hopeful future.

一场少女失踪案，让三个命运迥异的女孩面临人生抉择，平凡家庭的悲喜尽显无余；地上城市与地下管道明暗交织，少女踽踽独行于其中，历经苦难，揭开背后的真相，完成自我救赎，走向希望。