Memory Fragments, the Seventh Echo

When psychological profiler Lin Mo was handling a serial murder case, he discovered that all the victims had listened to the same mysterious recording before their deaths. As the investigation deepens, she not only has to face the psychological trap carefully laid by the murderer, but also confronts her own memories that are gradually out of control - those childhood traumas that have been deliberately forgotten are constantly reappearing in the form of echoes. When the truth emerged, she realized that she was both a hunter and a prey.