President Choi, hotelier of Seoul Hotel, died from a heart attack hours after Kim Bok-Man, his old friend, informed him of serious plans his company, Hankang Distribution, had to buy over shares of Seoul Hotel. He was succeeded by his wife, Yun Bong-sook, who had never assumed any positions in the past to run the hotel. The reason for Yun assuming the position was to carry on the works of her late husband. Her son, Choi Young-Jae, was a dissolute man who refused to work and was capable of taking drugs.

Yun was confronted by pressures from Kim, who was making his way to buy up Seoul Hotel's shares. To fend off the competitor, Yun sends one of the hotel managers, Suh Jin Young, to America to try to rehire Seoul Hotel's former Head Manager, Han Tae-Jun, who was forced to resign after a scandal involving the hotel. Han was taking care of a drug-addicted, dissolute Korean-American girl who was nearly forced to take drugs.

Kim was looking forward to make his attack and hired Attorney Frank Shin Dong-Hyuk, a wealthy Korean-American takeover businessman, to assist him in buying over the hotel's shares through various means.

Frank Shin agrees to the job only after meeting Suh Jin Young when she travels to America (to find Han) and learns that she actually works at this "Seoul Hotel" of Bok-Man's proposal. Travelling to Seoul Korea for the first time since he left as a child, Frank and his loyal business assistant Leo move into a "Seoul Hotel" chalet to purportedly conduct their secret business with Bok-Man.

Kim learnt of Seoul Hotel's mismanagement through Frank Shin's infiltration as a double-agent. Whilst carrying out his duties, Frank found himself in love with Suh. Suh was later torn between relations with Frank and Han Tae-Jun.

Seoul Hotel proprietress Yun Bong-sook's dissolute son Choi Young-Jae fell in love with Kim Yun-Hee, the daughter of Hankang Distribution's manager Kim Bok-Man, during a nightclub meeting. However, relations went downhill as Kim Yun-Hee developed a crush on Han after a birthday party held at Seoul Hotel.

Han was weighed with duties of defending the hotel from their competitors at the same time protecting Kim from her abusive father and Suh Jin Young from falling in love with Frank. Han was also burdened with the additional duty of mending the ways of the previously dissolute Choi.

Frank soon discovered his dissolute sister, who had been in Han's care. They went to meet their father, who called them by their Korean names, Dong-hyuk and Dong-hee. Frank's attitude changed as he switched sides to helping Seoul Hotel.

Han Tae-Jun and Frank eventually re-established Seoul Hotel's position, but Yun was diagnosed with cancer and died soon after. Frank and Suh were engaged; Han travels to Las Vegas where Kim Yun-hee was sent to study business. A scene after the ending credits shows the two reuniting on a highway road.