Voice (2017)

Dispatch Team heads over to the location Kang Woo confined Chang Soo. But when they arrive at the place, Chang Soo is found dead. Meanwhile, Kang Woo is trying to find out about Kaneki’s past and goes to an old maid that worked at the Kaneki household in the past. The information the maid gives is rather shocking and makes Kang Woo remember his past.