Detective Dee investigates strange incidents at Tang's demon building, uncovering family secrets. Despite deception, eldest daughter Tang shares her unusual behavior, leading Dee to uncover the truth.

A series of strange incidents happen at the Tang's demon building but Detective Dee finds no clue. Dee finds the master of the family suspicious when he speaks with him, and when the eldest daughter Miss Tang secretly informs Dee about Mr. Tang's strange behavior and the fact that she is kept under surveillance, Dee vows to unveil the truth.—Celestial Tiger Entertainment