《我妹妹》是九Ｏ年代風靡台灣書市的《少年大頭春生活週記》續作，雖是續作，但整體風格迥異於張大春作品裡向來以男性為主的基調，透過家喻戶曉的角色少年大頭春寫其妹妹的故事，這本銷售突破十多萬本的暢銷書並非以逗趣搞笑贏得讀者，它深入處理少年的青春困擾，觸及少有的兩性問題。主角藉著觀看妹妹0歲到19歲的生命旅程，穿插對自己家庭父母關係的感受，思索自己（男性）對兩性問題的迷惘與坦承的悔悟。張大春透過本書給台灣的少年啟蒙書做了一次強大影響力的示範，通俗卻不落俗地寫出台灣高中到大學生世代青春的騷動與不安。

A young woman is forced to marry an older man who runs a roadhouse saloon. She is constantly being raped by her husband, a drunken loutish brute. She harbors a young man wanted by the police in a murder case, and soon the fugitive and the young wife have a torrid affair as she continues to hide him from the authorities.