The film tells the scary, haunting adventures of three medical university students who accidentally discover a species of wormwood that is made with human blood in an ancient wooden box containing a piece of withered tree and amulet. He placed it deep in a messy bookshelf in Professor Hoan Sinh's house. That is wormwood blood, a secret medicine of the Sang La people.

Director: Bùi Thạc Chuyên