Under the shadow of the prosperity of Shangjing, evil quietly breeds. A group of high-spirited police officers rely on their extraordinary wisdom, keen insight and persistence in details to enter each intricate case mystery. Every clue may be the key to unlocking the truth, and every deduction is like groping forward in a fog. Watch how they peel off the cocoons, battle wits and courage with the criminals hiding in the dark, uncover the truth covered up in layers, and let justice be done... Good people are not necessarily good people...
