Best friend Xu Man voluntarily takes on the chore of collecting gift money for the wedding of bride Su You, but secretly swaps the payment QR code, wanting to embezzle eighty thousand in cash gifts. She thinks her plan is flawless, but does not know the bride has been prepared for a long time, with anti-counterfeiting seals, hidden surveillance, and an accountant in the dark auditing accounts all in place. The public exposure at the wedding is only the prelude; a contest regarding bottom lines and greed has just begun.