1004 Night Café located at Seongdong-gu is a must-go for adults who arent seeking for the busting and loud music of usual night bars that adults go to. Aside from that, what attracts customers the most is the mysterious and intriguing, yet handsome owner Yoon Jeonghan; who is like everyone's best friend as soon as they enter the premise. Everyone gets linked, but not everyone goes past that. And it becomes more twisted as the story goes on...