方兰（周迅饰）是一位热诚的小学教师，和妈妈（叶德娴饰）住在香港，在男友（霍建华饰）决定为日军工作时，与其分手。
An earnest primary-school teacher , Fang Lan ( Zhou Xun ) , lives with her mother ( Nina Paw ) in Hong Kong , and finds herself single when her boyfriend , Wing ( Wallace Huo Chienhwa ) , decides to work for the Japanese .
叶德娴