One of Liu Chia-liang's classics,.Cat VS Rat is almost a full-scale slapstick comedy, as well as a tailor-made showcase for the "odd couple" of Alexander Fu Sheng and Cheng Shao-chiu. Their wushu squabbling for supremacy ultimately imperils an incognito emperor, resulting in a sparkling and unexpected family affair, from the king of kung-fu filmmaking.