Bank employee Lin Zimo keeps two hundred thousand yuan for his father Lin Zhiyong, but is accused of not returning the money when his younger brother prepares for his wedding. Facing doubts from relatives and friends, he produces six pieces of surveillance footage to prove that he not only paid back the principal, but additionally subsidized one hundred thousand yuan. The truth reveals his father's long-term partiality, and also drags out seventeen thousand yuan of old debts among relatives. Those who once advised him to look at the overall picture of family affection now push and shove each other when it is their turn to pay back the money. Having gone through this storm, Lin Zimo no longer retreats without principle and decides to guard his personal boundaries; Lin Zhiyong also pays the price for the unbalanced family affection.