Su Ming is an ordinary mobile phone repairman. The whole meaning of life is to make money to treat his sister's illness. Until that day, he repaired a mobile phone of unknown origin. The mysterious interface that suddenly popped up on the phone could actually analyze the underlying code of all technological products in the real world. When he casually cracked the smart access control system of the office building, a dusty encrypted data stream revealed the truth about the accident that changed his fate five years ago - it was not an accident at all. What he didn't know was that the real owner of the phone was watching his every move through satellite positioning.
