In the heart of Chinatown, New York, an ornery, chain-smoking, newly widowed 80-year-old grandma is eager to live life as an independent woman. When a local fortuneteller predicts a lucky day in her future, Grandma decides to head to the casino, only to land herself on the wrong side of luck, attracting the attention of some local gangsters. Desperate, Grandma employs the services of a bodyguard from a rival gang and soon finds herself right in the...