Psychiatrist Joon-sang is a well-known doctor. He is level-headed with his patients, but he's got a painful past. He'd witnessed his wife kill herself because she was raped. He'd suffered insomnia along with guilt and sadness until a beautiful girl Ji-soo comes along. She tells him every man who's loved her died and that someone was watching her. She seduces Joon-sang. A detective suspects Ji-soo to be involved with a recent murder case and asks Joon-sang for her medical records... Falling in love with something dangerous and the end of which is unknown!

Kang Hyeon-joong, a former National Intelligence Service agent, is currently running a private investigator office after he quit. Ha Mi-so is his secretary helping him with his daily tasks in the office. One day, a woman whose name is Yoo-ra visits the office and requests him to investigate about a man named Min-ho, whom she loves. She wanted to know what Min-ho really thinks about her. She says she is scared and concerned that he might think she approached him because she wanted the assets of his wealthy family. So she wanted to confirm if he actually loves her. In the afternoon on the same day, Min-ho comes to the same office and makes a request to investigate about Yoo-ra’s inner thoughts. Kang Hyeon-joong is perplexed as he received the same request from a couple separately on the same day. But he shortly realizes there is something strange in the stories from both of them and this situation is all because of a plan someone has plotted deliberately.

Late superstar Hyeok-bin is slowly regaining his reputation with his honest and funny online podcast. He considers this a chance he will never have again and does his best. Meanwhile, rookie actress Ah-hyeon, sex columnist Yeo-jin and movie director Tae-hyeon are panel mebers who hate the fact that they have to broadcast with Hyeok-bin who is hot-tempered. While the gap between them deepens, will their podcast succeed?