她是國家機關女幹部，卻慘遭碎屍丟進運河！兇手用三種繩子綁住她，只為了……

December 25, 1981, Haidian, Beijing. A sack was fished out of the Jingmi Canal. When it was opened, everyone was horrified — inside lay a headless, legless female corpse. The body was wrapped layer upon layer with kraft paper and plastic sheeting, tightly bound using three different kinds of rope. Stones and quicklime were stuffed in the sack, intended to keep her submerged forever. Police investigated for a long time yet never tracked down the killer. However, one of the ropes became the key to solving the crime. #JingmiCanalDismembermentCase #BeijingCrime #1980sColdCase #TrueCrime #MysteryCommentary #CrimeDocumentary