City real estate companies appear one of the housing selling more amazing fraud, the interests of the people suffered serious losses. The criminal investigation captain Zhang Xuguang led the major case unit involved in the investigation, real estate company boss Wu Daguang before the kidnapped. The mysterious person holding the boss Wu Daguang authorization will house until after Juankuan disappearance. Zhang Xuguang in the investigation of Wu Daguang kidnapping, found that there are seven cases in a case, and the mutual relationship. Seven cases were detected after one one, Zhang Xuguang will sell more than one room of the initiator of evil lock in Wu Daguang wife Liu Yali, can the high IQ Liu Yali almost didn't leave any evidence. Zhang Xuguang resist duofang pressure, through the traces of the clues will eventually Liu Yali to justice.