Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.

In 1987, bloodied man Soo-ho jumps into a women's university dormitory in Seoul. Yeong-ro, a female student who fell in love with him at a group blind date, tends to his wounds as the dormitory is ensnared in intense surveillance. As Soo-ho's secrets unravel, he must eventually face the conflict between his heart to Yeong-ro and responsibility to his comrades, as well as to his sibling who awaits him in his home country. What will be of their fate?

Nam Se-Hee is a single man in his early 30s. He has chosen to not marry. He owns his home, but he owes a lot on his mortgage. Yoon Ji-Ho is a single woman in her early 30s. She does not own a home and envies those that do. She has given up on dating due to her financial struggles. Yoon Ji-Ho begins to live at Nam Se-Hee’s house. They become housemates.

Pontifex Lembrary fights against a devil, he gets transferred to a different world possessing the body of Woo Yeon-woo who is a member of an unpopular idol group called Wild Animal. In an entertainment business where overwhelming social skills, trendiness, and talents are highly necessary, it is hard for solemn, holy Lembrary to adapt. Due to his inappropriate says and dos as a celebrity, Lembrary is talked about from the public and receives attention that he did not expect. Using his goodness and love, Lembrary heals this twisted and barren world people live in while going this way and that way to settle himself as an idol.

In disguise as her friend, Ha-ri shows up to a blind date to scare him away. But plans go awry when he turns out to be her CEO — and makes a proposal.