In the head of meets several Swiss or naturalized Swiss, Black or mixed-race people who evoke a sometimes painful personal experience marked by the violence of words heard on the street corner, condescending attitudes, discrimination at work or racist acts.

The black hedgehog is a racist confectionery on display in a bakery. This confectionery, denounced by an anti-racist association, brings to the surface a painful story of Afrodescendant people. To overcome the injunction to silence, the film imagines a space where all voices can be heard.