When a spate of grisly murders throws a city into chaos, a tenacious prosecutor must brace for a cat-and-mouse game against a dangerous manipulator.

Hearing-impaired teenager Chang Cheng transfers to a school for children with special needs. However, the world of the hearing-impaired doesn’t seem quiet at all. When Chang witnesses the game taking place in the last row on the school bus, his excitement about blending into a new environment immediately turns into fear.

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