A lawyer calling himself Jin-young walks into a police station to report a missing person: himself. He is suffering from severe memory loss and a total change of character and soon sets out to investigate his past and his connection to a woman he meets in a hospital.
When a crime organization from North Korea crosses borders and enters South Korean soil, a South Korean detective must cooperate with a North Korean detective to investigate their whereabouts.
An ace crisis negotiator faces off against a cold-blooded hostage taker. Over the course of 21 hours, she attempts to crack his unusually calm demeanor and force him to reveal his motivations.