Seo Munju, a highly accomplished diplomat and former ambassador to the United Nations, and Sanho, an international special agent shrouded in a veil of secrets, race to uncover the truth behind an attack that threatens the future stability of the Korean peninsula....
Cha Su-yeol, a police officer who has long despised his mother, the notorious 'Mantis' serial killer, must reluctantly turn to her for help when a copycat killer emerges....
