April 2020 – Lockdown. Etienne, a film director, and his brother Paul, a music journalist, are confined together in their childhood home with their new partners Morgane and Carole. Every room, every object, reminds them of their childhood, and the memories of the absents - their parents, their neighbors…This compels them to measure the distance that separates them from each other and the roots they share, those of their ground zero. As the world around them is becoming increasingly unsettling, unreality, and even a disturbing strangeness, invades their daily gestures and actions.

　　夜幕降临，小镇沉睡，所有人都闭上了眼睛。

　　故事围绕着著名管弦乐队指挥蒂博展开。当他被诊断出患有白血病时，他开始寻找骨髓移植的合适捐赠者。随后他发现自己是被领养的，并且在北方有一个哥哥。哥哥是一名办公室职员，但也在当地一支即将解散的铜管乐队中演奏长号。在该地区唯一一家工厂即将关闭的背景下，他们的相遇标志着一段兄弟情、社会和音乐之旅的开始……