13th May 1969, while Su-mei and daughter Ah-eng were watching the Cantonese opera at Chinese Temple, Kuala Lumpur, her husband Ah-kooi and son, Ah-yeow were at Majestic Theatre. A violent riot has unexpectedly taken place, Su-mei’s husband and son were both killed as they escaped from the theatre. In a panic, Su-mei and her daughter took shelter behind the opera stage the whole night. News went on air through the radio, The Prime Minister declared that the nation was under a state of emergency and martial law was immediately imposed. Su-mei’s husband and son’s body vanished from the aftermath of the riot.49 years later, Ah-eng discovered a news article about a nearly demolished “513” cemetery. On 13th May 2018, she continued her mother’s will to track down on her father and brother’s burial location.
1969年5月13日，馬來西亞大選落下帷幕，執政黨險勝，全城緊繃。素梅帶女兒小英到吉隆坡觀賞街棚戲《六月雪》，丈夫文貴則與兒子赴大華戲院。豈料暴徒突襲，父子困在戲院，素梅攜女兒躲入戲棚。是夜，素梅徘徊在滿目瘡痍的戲院，遍尋不著丈夫和兒子的蹤影。
2018年5月13日，逢全國大選結束第四天，執政黨首次落敗瓦解。遠嫁檳城的小英在報章得知吉隆坡一處差點被鏟除的513事件義山塚，為繼承母親生前遺願，再走一趟尋找往事之旅。塚上，小英遇戲班女伶在墳前悼亡者。兩代女人，互訴一段被遺忘的家國事蹟。
