Chen Mo, a freelance writer with mild social anxiety, moved into an old apartment building in search of peace and quiet. But at midnight, he began hearing a girl crying in the vacant apartment downstairs.
As he investigated further, he was horrified to discover that the cries were a “temporal echo” from an unsolved case ten years earlier. From a passive listener, he gradually became a “time-crossing eavesdropper” and “detective.” With help from a retired detective, he uncovered the truth: the girl had been cold-bloodedly murdered by her own parents. In the end, he used an unbelievable method to leave evidence in the “past” pointing to the “present,” bringing the criminals to justice and finding redemption for his own soul.
