Tonight, for Park Jimin isn't like the other night. When he prepare for locked up the coffee shop and ready to take out the trash, he didn't know he will become a witness for a serial murder case. He knows his life won't be the same, even though Special Agents of NIS Jeon Jungkook ready to take action, not when one by one the victims looks like him. "Stalker? Me? Noooo. But you should call your watch dog. That Jeon left you a message yesterday while you were sleeping. I muted it so you could rest."