On a rainy night, lost and found clerk Lin Wanzhao received an unclaimed red suitcase. After touching the lost object, she will see three barrages: one of truth, one of imminent danger, and one of the owner's deepest self-deception. The red box contains a fourth item - mother is still alive. In order to find her mother who has been missing for eight years, she teamed up with Zhou Jibai, whose identity is a mystery, to investigate everything from arranged disappearances and borrowed names to a "homing plan" that turns living people into numbers. But every time she forcibly reads the fourth item, she will permanently lose a memory. When the truth approaches, she must decide: Is finding someone worth losing the person she loves the most?
