When anti-regime journalist Lena (Aliaksandra Vaitsekhovich) is arrested for livestreaming the brutal crackdown of a demonstration protesting the 2020 Belarusian election, her husband Ilya (Valentin Novopolskij) is confronted with an impossible situation. Subjected to further police raids and facing the likely reality that his wife will spend years in prison, Ilya must reckon with what he might have to give up by standing with Lena.
At the same time, an incarcerated Lena is under pressure from the authorities to renounce her activism and betray her firmly held principles. Under the Grey Sky is a film specific to Belarus, but with increasing international relevance.