In a peaceful elderly home managed by retired doctor Master, with assistance from his long-time nurse Ching, lives a group of five retirees. Teddy is a former professional pickpocket, Fatty Crab is an ex-detective who now gets around in wheelchair, Uncle Lung is formerly a spy for the British secret service, Richard is a former professional swimmer who is still saddened by his son's death at sea a few years ago, and Wai is an elegant Chinese opera actress who is now retired. Their peace is about to be shattered when Master's old friend, the gangster Marvin, plans to take revenge on him.