電影講述一個苟且求存在大城市底下的貧窮家庭的悲慘故事，並引發窮人所面對的困境與悲歌。此故事發生在一天之內，一輛超速闖紅燈的車撞上了騎著鐵馬的阿強與五歲的妹妹惠珊。不幸的是，妹妹惠珊在車禍中不幸逝世了。可惜礙於惠珊是被遺棄的孤兒，沒有任何文件可以證實惠珊與阿強的關系，使得阿強無法領取惠珊的遺體，加上母親情緒不穩定，導致阿強必須獨自面對所有難題。

Ah Qiang lives in the big city and struggles to take care of his mentally unstable mother and his 5-year-old sister, Hui. When a speeding car kills Hui in an accident, Ah Qiang is desperate to claim his sister’s body. Unfortunately, he can’t prove his relation with Hui as she was never registered at birth. Ah Qiang’s mother is no help given her condition. Ah Qiang is forced to face this predicament on his own.

陳勝吉畢業於國立台灣藝術大學電影系。2013年編導的《32℃深夜KK》獲得BMW短片競賽首獎、最佳導演、最佳編劇等獎項。2014年獲台灣金馬創投百萬首獎，2017年的第一部長片《分貝人生》入圍金馬獎最佳新導演和最佳攝影。

Tan Seng Kiat studied filmmaking at the National Taiwan University of the Arts. He is the director of the short 32°C Fall in Love, which wins Best Director, Best Screenplay, Best Editing, Best Actor, Best Actress, Best Picture in the 2013 Malaysia BMW Shorties Award. He was awarded NTD 1 million by the Golden Horse Film Project Promotion in 2014. Shuttle Life is his debut feature film released in 2017 and was nominated for Best New Director and Best Cinematography at Taipei Golden Horse Awards.