The story of Sister is told through a montage of various home-movie and instagram-like smartphone footage captured in the period of 2020 and 2023. In these years, the director, after experiencing Bosnia and Herzegovina in the Covid-19 era struggling with the highest pandemic death rate in the world, decides to emigrate and start a new life in Germany. There, the footage is assembled into a film. With the dreams of home, faces from the past appear; places, images and feelings, too.