With help from a young woman with synesthesia, a cop who lost his sense of pain tracks down the serial killer who brought tragedy to both their lives.

Two months after their wedding, Yeon-Yi’s husband Jin-woo gets into an accident and falls into a coma. During this time, Yeon-Yi’s life shatters from the seams. She misses her deadlines…

Hell-bent on avenging the murder of his family, a former detective infiltrates a remote island that serves as a prison for vicious death row criminals.

After unwittingly stealing money from a cartel, a cash-strapped professor finds the only way to save his broken family is by working as a drug courier.