It's necessary to say straight away that this is an Art House film that is unlikely to receive a wide distribution outside of Europe. It has also divided opinion on its use of Bosnia's dark period as the background to the story.
The first scene focusses on Joachim, standing by an open window in a Paris apartment and being filmed by a friend, Alice. I never really determined their exact relationship. It's a grainy film in which he recounts a stranger shouting at him the street, claiming him to be the reincarnation of a soldier, Zoran Tadic, who died in Bosnia on 21 August 1983, which happens to be his birthday.
Following this he has dreams and draws sketches depicting a soldier and other war scenes. And one morning he awakes with writing on his arm. Alice, who reported from Bosnia for three years, points out that it is Cyrillic, spelling out the name Zoran.
This weirdness leads to the pair travelling to Bosnia, accompanied by a cameraman who we hardly ever see and a sound engineer, and friend, Virginie.
The story is then that of trying first to track down the grave of Zoran Tadic, followed by seeking out possible relatives. After a while Alice, who speaks Serbo-Croatian, starts to become annoyed with Joachim's irritating behaviour and carries out a bit of deceit to try to satisfy him. But he continues to seek answers leading to a rather surreal meeting towards the end of the film.
You will probably be left wondering whether he is indeed the reincarnation of a fallen soldier, and whether the film is a simple drama or something much more supernatural.
Alice is played by Adèle Haenel, a fine actress who recently starred in the very successful romantic drama Portrait of a Lady on Fire. If you search for 'Haenel' on this site you will find some other of her films that I have reviewed.