Hwang Taek-geun, the godfather of the night world, is a man of strong sympathy and loyalty. O Ya-bung and Hwang Tae-geun, who were respected by gangsters, are attacked and killed by unknown men one day. Jo Ki-pyo, who has grown up with the love and trust of Taek-geun Hwang, is saddened by the death of Oh Ya-bung and decides to take revenge by himself. Hwang Taek-geun's daughter Hye-sook confesses her love to Ki-pyo, and the two fall in love. Ki-pyo, who is the middle boss, is working hard to find the criminal with his subordinates, but becomes suspicious of Hwang Taek-geun's mistress, Madam Yoon, and Ki-pyo orders Su-hao to trace Madam Yoon. However, Soo-cheol, who was following Madam Yoon, is attacked by a group of people and becomes a wreck and ends up in hospital...