The Guilty

The drama unfolds around a passionate man who hides his crimes to protect his first love and a middle-aged detective seeking redemption by uncovering a brutal truth. In a city besieged by scandal, a shocking murder, and a bizarre mining accident, three distinct cases intertwine due to a current police investigation. After eighteen years of inquiry, astonishing secrets behind these cases are revealed.
The story features a seasoned, cunning old detective, three promising university students burdened by guilt, and a coal mine owner whose glamorous exterior hides numerous crimes. These three different societal figures collide due to a murder case, and in the battle of wits and courage, who will emerge as the true villain behind the scenes?
(source : mydramalist)