Movie depicts the story of a newly married couple in the present day. Young-Min ( Cho Jung-Seok) is an ordinary husband in the sweet honeymoon phase of his marriage. Mi-Young (Shin Min-A) is a smart wife.
100 years ago, titans suddenly appeared on Earth. Soon, human civilization veered on collapse due to the titans. Humans then built a giant wall to defend themselves. Within the giant walls, humans lived in peace, but, 100 years later, the giant wall is broken.
Description: Personnel transfers take place at the metropolitan police department and Sakuragi Izumi is called upon by Nagashima Hideo who had been transferred to the special crime investigations prevention department. At the same time, the special investigations team members are transferred to other departments, each struggling to settle into their new environment. Izumi teams up with ace sergeant Takigawa a man with extensive knowledge and experience in the field. While Takigawa is not completely convinced about their partnership, he takes leadership and sternly instructs Izumi. One day, suspicious death accidents occur consecutively and the bereaved visit the jurisdiction to request a reinvestigation.  ... Soon, it becomes apparent that each and every one of the accidents were caused by defected products from various corporations. Takamine Ryoko notices a certain pattern to the accidents and begins to suspect a chance of "corporate blackmail". Can the team solve the mystery in time to save the next victim?