Lao Zhong, owner of a traditional medicine shop in the south of China, has two adults sons and a daughter. Even as the business prospers, family relationships worsen. A family can be compared to a tree, and damaged trees secrete resin to heal themselves. Perhaps a cure for the family’s intolerable situation can be found.

Train policeman He continues his investigation of the murder which happened on the train, he looks closer into the past of the passengers and reveals new secrets .

A Landslide forces a train to stop on a bridge. Druring the stop a murder takes place. The train policeman He has to investigate the case. Only a few passengers are on board, is one of them the murderer or was a mysterious entity the killer?

Train policeman He hopes that a autopsy of the body can help to find the real culprit and the true cause of his Death. Can the rising morning sun bring also light in the darkness of the case?