康城影展常客河瀨直美繼《殯之森》、《甜味人間》（第12屆）後再探討人生無常的命題。專門撰寫口述影像的美佐子，因參與一部為視障人士製作的無障礙電影，認識了嚴重弱視的攝影師雅哉，一個想不開、看不透眼前景象的虛實，另一個放不下、忘不了逐漸流失的光影。永瀨正敏完美詮釋人生即將變得黯淡無光時的躁動，水崎綾女嘗試向內深掘盲人的內心世界，二人為了尋找光和聲音譜出一段美麗篇章。河瀨直美不再只浸淫在生與死之間脆弱的美麗，這道《光》變得更真實、更親近、更溫暖。

Misako is a writer of audio descriptions for the visually impaired. Her confidence is shattered when her latest work runs into harsh feedback by Nakamori, a veteran photographer whose rapidly deteriorating vision has turned him into a curmudgeon. Through sheer patience, Misako slowly pulls Nakamori out of the darkness and shows him that he doesn’t need eyes to see the world. Returning to the competition section of the prestigious Cannes Film Festival for the fifth time, Japanese auteur Kawase Naomi delivers a gentle, life-affirming work bursting with love and empathy. A poetic tribute to the importance of communication and imagination, Radiance may be Kawase’s most tender and romantic film to date.