The ‘Beast Cop’ Ma Seok-do heads to a foreign country to extradite a suspect, but soon after his arrival, he discovers additional murder cases and hears about a vicious killer…

Eun-ha, who is a normal junkyard employee, secretly works as a delivery clerk that deals with unusual delivery requests. One day, Eun-ha heads to Seoul to pick up a client…

In Cheonan, a serial murder case takes place, but the case becomes more and more of a mystery. Only Tae-suk, a cop, immediately senses that all the cases are by…