住在社會住宅的劉志中一家，為了住進自己買的房子，用盡方法省錢，使出各種貪小便宜的招數，像是搶鄰居資源回收物、將單親媽媽可芳當成女兒大發的免費保姆等，而劉家也在長期占鄰便宜的過程中，發現不同住戶們埋藏的內心事，漸漸培養出如同家人般的感情。然而，當他們即將存到買房頭期款時，卻遭遇了一連串的挑戰。究竟他們能不能完成買房的夢想呢？

讲述全世界最会省钱的一家人使劲各种办法去占邻居便宜，却也发现了许多人人不敢说出口的事情，是一部家庭喜剧影集。

The Thrifty Family is a comedic story centered around the LIU family, residing in social housing and striving to save for their own home. As they approach their savings goal, they face challenges like unemployment, breakups, and family conflicts, leading them to reconsider the value of their frugality and their pursuit of a house.