Ko Chun undertakes to help a friend pay a debt by beating his friend's advisory at the card table. Despite being assigned a bodyguard Ko Chun has a freak accident which leaves him with partial memory loss and at a mental stage of a child. Knife and his girl friend, being responsible for the accident takes care of the retarded Ko Chun. After being chased by both Knife's loan-shark and enemies closer to the home of Ko Chun, a final showdown at the card tables may take place.
