An actual exorcist, Hong Ji A, gets rid of unrested spirits to sell houses at original market prices. On the other hand, Oh In Bum is a fake exorcist who calls himself a doctor of the paranormal to scam people. Two totally different people live their lives as per usual until the day they serendipitously run into each other.

Lee Eun Hye, the director of Britium Art Museum, is having issues regarding a restless spirit haunting her museum. As soon as Oh In Bum hears the news, he comes up with a plan to scam Lee Eun Hye. But it does not turn out well after he runs into Hong Ji A again in the museum. Ji A keeps trying to persuade In Bum to work as her psychic for just one case, but he keeps refusing. Despite their differences, they keep meeting at a crossroad, and they don\u2019t know where it leads.

Thinking the death of Ji A\u2019s mother has something to do with his uncle\u2019s death, In Bum is determined to work with Ji A. Despite her refusal to continue working with a fraud, Secretary Ju persuades Ji A because he\u2019s the strongest psychic they\u2019ve ever seen. The two eventually start their fragile partnership and begin working cases.

Ji A closes the Britium case with the help of In Bum. However, he experiences side effects from the possession of Byung Ho\u2019s spirit. Aware of everything Byung Ho has gone through, In Bum cannot resist the pain and sorrow that Byung Ho felt. Although all his efforts to deal with the side effects were meaningless, he soon comes up with another plan.

Ji A runs into an unrested spirit that is haunting the chairman of Dohak Construction. She immediately recognizes him, since he is related to her mother\u2019s last exorcism. Meanwhile, Ji A and In Bum visit Green Villa for another case, and the spirit doesn\u2019t even know that she was dead after being scammed. In Bum and Ji Chul secretly look for President Hwang, and Ji A meets his sister, Hwang Ji Yeon.

Ji A is reminded of what happened 20 years ago, but this time with a boy whose face she can't see. Later, Ji A and In Bum head back to the sauna to perform the exorcism. They successfully get rid of the restless spirit, but afterward, In Bum's conscience tells him he needs to do something about the murder.