Cheung Yan-Lai, framed by his elder brother Cheung Yan-Tsuen, is sent to jail. He manages to escape and plans to take revenge along with a sorcerer, who uses orangutan blood to turn the Yellow Hair Monster into a lethal weapon.
Yeung and Kwok are best friends whose wives become pregnant around the same time. Yeung's wife, Pao Sik-yeuk, finds a wounded man hidden in the barn and secretly helps him. He turns out to be a foreign Prince and disaster follows. The sons are then scattered with one growing up in the Prince's kingdom and the other in Mongolia. Now grown, they go out into the world and discover the secret details of their lives.
An opera troupe has to dissolve in view of the poor economy. Comedian star Sang Kwai-lei loses his job and he has no alternative but to play the lion character in the opera troupe of his former junior apprentice Chan Hau and pawn his stage costume. He aims at earning enough money to support the final year's secondary school studies of his elder son Chi-kuen. Kuen however refuses to continue his studies, seeing that his father has to put aside his dignity to earn money and his mother is worried. Lei is enraged and uses the money to support his younger son Chi-wai's studies. Again, Lei loses his job and he resorts to giving street performances, his wife takes up sowing work in her spare time and she dies after a long illness. Kuen works to support himself through school, but Wai is less fortunate, he is forced to enrol in an opera troupe as an apprentice. Years later, the dying father joyfully embraces Chi-kuen's return from his studies.