Can I Get a Witness? tells the story of a mother and daughter in a near-future world where huge sacrifices are made to maintain life on Earth.　　With its resources swallowed by e-waste and overpopulation, the world is experiencing an anthropogenic collapse. To manage, technological advances are shunned. Nobody has electricity and only people with exceptions are permitted cars. Most importantly, there is also a collective agreement that nobody is allowed to live beyond the age of 50.　　Oh’s Ellie lives with her teenage daughter Kiah (Keira Jang), who is starting her first day as a Documenter, an important role in this new world order. She uses her artistic gifts — beautifully conjured in animations — to draw the dying ceremonies, since printing and photography have been banned.　　Kiah is paired with Daniel (Joel Oulette), the young man who performs the contractual elements of each person’s end-of-life ceremony. He matter-of-factly provides the packages a person can choose, sets them up when the time comes, and performs the burials. But his new coworker is having a hard time handling the emotional impacts of the job.

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　　本片改編自民間傳說，幾個世紀以來，在不同的文化背景下，父母都會警告他們的孩子要小心傳說中的Bagman。Bagman會把無辜的孩子抓走，塞進那骯臟腐爛的袋子里，再也沒法回到父母身邊。Patrick McKee小時候曾逃過此劫，但這給他的生活留下了永久的創(chuàng)傷。現(xiàn)在，Bagman又回來了，威脅著他妻子Karina和兒子Jake的安全。

　　Golf Club經(jīng)理潘致文(劉青云飾)與老婆張美瑛(蔣怡飾)結(jié)婚將近七年，生活平淡、枯燥，雖然他渴望著過過“放蕩的新生活”，但是天性膽小，只敢說不敢做，基本上是一個善良的小男人。　　這一次美瑛要去外地旅行，潘致文覺得這是個大好機會，于是決定趁這個“婚姻大假”找尋一些刺激。撫慰自己強壓六年多的欲海。　　夜晚在PUB中，致文就邂逅了冶艷少女趙靜(應(yīng)采兒飾)，令到他心癢難忍。正當致文準備向阿靜展開攻勢的時候，卻在相處中了解到她原來身世相當凄慘，放蕩的行為只是因為孤寂的逆反，致文憐憫之心大增，無奈中不得不放棄了占有的欲念。　　而與此同時，致文又遇上了自己的初戀情人張采冰(劉嘉玲飾)，已經(jīng)成為事業(yè)女性的阿冰目前生活無憂，身邊男伴無數(shù)，并且和一個健身教練WIL(安志杰飾)關(guān)系曖昧。但是外表熱情似火的她對于致文依舊念念不忘，致文立刻與冰重燃了愛火，但同時也覺得對妻子心存愧疚。然而此時此刻家庭的危機也漸漸發(fā)生了出人意料的變化……