While Vietnamese people have a common idiom meaning generally that, “Family cannot stay rich and peaceful if there are three sons”, the series “Three sons make great wealth” proves this idiom wrong.
Tuan, Tu, Toan are sons in a middle-class family. Each of them has their own private lives, careers and interests. Troubles star to occur since Toan, the oldest brother divorcers his wife, My. The whole family stay together to save this small family, however It is useless. Toan leaves his house (which is indeed the property of his parent-in-law) to stay with his parents and brothers.
In addition, both Tuan and Tu have serious troubles. While Tuan is a bookworm, trying all his best to upgrade his position in the society, without caring to his lover, Mai, Tu, the youngest son is just a lazy boy. Tu fails the entrance examination to a university, just spent all his time to make fun with his girl friend, Huong, a very rich, lovely but lazy girl.
The house is small, but there a nearly ten people living inside. Many conflicts occur. Sometimes, they don't want to live together, and fight.
At the end of the series, it is deeply realized that troubles have their own value that is to make members of the family stay closer. They know how they need the others. The film appreciates relationships inside a family, especially a family with three sons.