Storage organizer Fang Zheng is entrusted to clear out an old house piled with waste newspapers, only to discover that the seemingly unordered sundries are actually a precise three-dimensional coordinate system. Facing the client who is eager to clear the house to pay off debts, Fang Zheng withstands doubts and establishes a three-day gambling agreement, vowing to use reverse mapping to find the hidden core heritage. As the tilted furniture and secret gears in the concealed compartment surface one by one, a decryption exploration concerning spatial geometry unfolds. This messy room locked by heavy mechanisms will ultimately reveal the family warmth code deeply buried by the older generation of cartography masters for many years.