Title:Duo qing jian ke wu qing jian Year:1977 Genre:Action / Drama Language:Mandarin Country:Hong Kong Director:Yuen Chor Writer:Yuen Chor / Lung Ku Actors:Lung Ti / Li Ching / Derek Tung-Sing Yee Plot:A righteous martial arts master is thrown into a devious scheme to paint him as a certain treacherous masked assassin.