Kim Moon-Ho is a popular reporter. One day, he learns the truth of a case that took place in the past. He intentionally approaches people who are related to the case and helps them. While doing so, he agonizes over the truth and beliefs.

An old murder incident involving a group who ran an illegal broadcasting station brings together different people - a mysterious errand guy "Healer" who possesses disguise and fighting skills, a reporter from a second-rate tabloid, and a famous journalist. They will have to deal with the cruel conflict of truth versus faith.

Kim Moon-Ho (Yoo Ji-Tae) is a popular reporter at major broadcasting company. One day, he learns the truth of a case that took place in the past. He intentionally approaches people who are related to the case and helps them. While doing so, he agonizes over the truth and beliefs. Meanwhile, with the help of Kim Moon-Ho, internet reporter Chae Young-Shin (Park Min-Young) and Seo Jung-Hoo (Ji Chang-Wook), known as "Healer," grow into real reporters.—Miia T. Amri

Seo Jung-hoo is a mercenary who will do whatever his clients ask, except kidnapping or killing people. He is known in his field as "Healer", the best night courier in his business. He is given a mysterious mission from a client to monitor a young woman named Chae Young-sin, an online news reporter at a low-level news agency, and report everything she does. Healer applies for a job at Chae's company in disguise to accomplish the mission under a fake name. It starts like any other job for him and never does he think that he will fall for the charming news reporter as they uncover a 20-year-old murder mystery.—Alex