人生雖然比想像更艱難，但光明永遠都在。

藤澤美紗飽受嚴重的經前症候群（PMS）所苦，每月一次例行性變得煩躁、無法控制自己的情緒。一天，她聽見新來的同事山添打開了汽水瓶，僅僅是那樣微小的聲音就讓她變得怒不可抑，對山添飆罵了一番。然而，總是看起來無精打采的山添君卻是個恐慌症患者，原本外向的他因為疾病，頓時放棄了很多事：運動、工作甚至是女友，現在的他就連搭電車這樣的小事都做不到，徹底失去了生活的熱情與意義。在同事的理解與支持下，兩人產生了一種特殊的情感，不是朋友，也不是戀人，某種程度上算是戰友。一路走來，他們開始相信即使自己的症狀沒有改善，也能成為彼此的後盾。本片入選2024柏林影展論壇單元，改編自本屋大賞冠軍作者瀨尾麻衣子小說【黎明前的全部】，這也是瀨尾麻衣子的作品繼《接棒家族》後再度被翻拍成電影。由以《惠子不能輸》在海內外取得高度好評的導演三宅唱執導，找來在NHK日劇《她們家的故事》中飾演夫妻的松村北斗、上白石萌音再度攜手合作，成功詮釋一對在職場上因各自飽受身心疾病所苦，而成為最能理解彼此的男女。

Misa Fujisawa experiences premenstrual syndrome once a month. During those times, she tries to deal with her uncontrolled irritation at understanding her colleagues at work. One day, when she experiences PMS, her anger explodes at Takatoshi Yamazoe, who has recently begun working at the same company. It was just a small action that triggered her anger, causing her to feel self-hatred. Meanwhile, Takatoshi suffers from panic disorder. Due to that, he gave up on many things in his life and he carries a lethargic attitude to his life. Becoming aware of each other's situation, Takatoshi Yamazoe and Misa Fujisawa begin to share a bond and try to help each other.