It's about Shanghai in 1930s, when the gang forces in the Jianghu were fighting with each other, and there were constant disturbances. Four teenagers from different backgrounds became best friends in the fight. A few years later, Guo, the son of a wealthy family, returned from studying abroad. The driver's son, Zhou Zihao, works as a cellist in the ballroom. Wang Yuefeng and Stallone became workers and gangsters respectively. The four men decided to form a jazz band.
To this end, Guo fell out with his father, and Zhou did not hesitate to step into the underworld to realize his friends' dreams. In the meantime, the appearance of rich girl Ye, Shanshan and virtuous, and the disharmony of Zhou's dream lover Guo Ruwen, several young people interpreted a beautiful love story.
Four good friends successfully performed In the Mood for Love in frustration and loneliness, and also realized their long-cherished wish to appear on the stage in Blue Lotus. But they paid a heavy price for it-they were killed by the underworld and had to live far apart. Zhou Zihao, who holds the top spot in this gang, is still trying to realize his common dream.
Ye Zi became a movie star, covering up her real professional spy as a star; Kind Huang Shuyi takes good care of Wang Yuefeng who has amnesia, and the love story between Shi Dalun and Shanshan is still fruitless.