On an ordinary morning in Seoul, South Korea, the host of the radio program Daily Topic, Yun Young-Hwa (played by Ha Jung-woo), is connecting with listeners to discuss tax reform. At this time, a man named Park Ru-gue, claiming to be an ordinary worker living in Changsin-dong, calls in to voice his complaints about the extremely high electricity bills and the threats from the relevant departments. Yun Young-Hwa, quite impatient, cuts off the call on the grounds that it deviates from the topic. However, the connection cannot be unilaterally terminated by the radio station, and the furious Park Ru-gue continues to complain, threatening to blow up the Han River Bridge. Yun Young-Hwa, dismissive, even encourages the caller to go ahead and do it. Just as he finishes speaking, the Mapo Bridge outside the window suddenly explodes into ruins. Startled, Yun Young-Hwa quickly regains his composure and decides to take advantage of this rare opportunity to turn his career around. Under his hosting, the live broadcast on the terrorists starts, marking the beginning of a show that disregards morality...©Douban