Description:Before the Second World War, spies from all over the world gather in Hong Kong. Private investigator Yo is commissioned by Tianzi No.1, the op spy in China, to hand over a stolen weapons blueprint from Germany to US intelligence agents, while German Nazi party pursue to Hong Kong to cause trouble, making the blueprint fall to the traitor police director. Yo and chief inspector run into Tianzi No.1 after they sneak into the director’s home and had fight in dark without recognizing each other. Later when Yo dresses up as a Japanese spy to receive the blue print, he finds that Tianzi No.1 is the director’s fiancée.
