Kim Young-hoo is born of a madwoman and raised by Father Kim. To hide his identity, Young-hoo grows up as a city vagabond, developing a burning desire. He coincidentally meets Young-seop, the second son of a conglomerate heir, and takes the blame for his car accident, leading to a strange friendship after a year of imprisonment. Young-hoo approaches Mi-ran, Young-seop's sister, who has had a failed marriage, to realize his ambition of ascending to high society. At the same time, Young-hoo inherits a considerable fortune after the death of Young-seop's father, but strangely develops genuine feelings for Hyun-joo, Young-seop's fiancée. Upon learning this, Young-seop reveals Young-hoo's tragic past and forces him to break up with Hyun-joo, but Young-hoo does not give up his love for her. Young-hoo, who has never loved anyone before, believes this to be the truth and, on the road where he rushes in search of that truth, meets his death in a car accident.