Set amid the atrocities of war in the Balkans, Witnesses is retold, Rashomon-style, from various characters' viewpoints, adding new information about the complexity of war and humanity. Beginning inside a rustic house with a woman in black (Mirjana Karanovic) standing beside her husband's coffin, Witnesses interweaves the stories of a small town confronting ethnic hatred and deep moral ambiguities.

At the beginning of 1991, Yugoslav army did not acknowledge Croatian's independence, and still holding few military barracks in Croatia. Gajski travels to an island to get his son out of the army. Locals have besieged the barracks and organized a festival to try with singing and recitals to get major Aleksa and his soldiers to surrender, but Aleksa has explosives thru the barracks and wants to blow up the island.