A documentary film about the sound installation made by the Macedonian artist Aleksandar Spasoski in 2013 in Munich, at the Isar river under the bridge of Raichenbachbrücke. Reproducing the sound of a real ship horn at a place with no water traffic, the artist wanted to stimulate the audience’s imagination as if a real ship was passing by, as well as to see how the sound would affect other people who are out of the location focus.