A duplex model home worth five million yuan is about to pass inspection, and decoration company head Li Qiang only needs this final step to settle the remaining balance and pay the workers' wages. Unexpectedly, his brother-in-law Wang Xiaohu, in order to save thirty thousand yuan in engagement venue fees, actually used the sealed-off model home as a bridal room to host a banquet. Sister Wang Wei repeatedly soft-heartedly let things through, causing minor issues to snowball, eventually resulting in a loss of three million two hundred thousand yuan. Faced with the test of family affection and company responsibility, Li Qiang insists on investigating the facts, repairing according to rules, and guarding integrity and the bottom line.