Serious Case File Book

Ling Feng was originally an ordinary civilian graduate of the police academy, but by chance, he was seconded to the Second Serious Case Detective Team of the Linhai City Public Security Bureau, where he worked with Lu Chenzhou, Du Ye and a mysterious fourth person to solve each mystery... Who is the mysterious fourth person? Is he really missing? Is the line between black and white so clear after all... Bloody murders, horrific greed, and the darkness of human nature are everywhere...