After Lin Tao, an ordinary worker, unexpectedly won a grand prize, in order to discern the sincerity of those around him, he chose to hide his wealth and return to his daily life. Taking advantage of opportunities such as blind dates and borrowing money, he experienced the various attitudes of relatives, colleagues and sister-in-law. He also witnessed the selflessness of his parents, the sincerity of his younger brother and the original intention of his classmate Xia Huan. In the tests of human nature, Lin Tao gradually saw the truth and falsehood, and finally proposed to Xia Huan on the stage, who had been waiting for many years, revealing the theme of "people's hearts are unpredictable, but true love is precious".
