Set into pavements across more than 30 countries, brass plaques the size of a hand mark the last addresses of people deported and murdered under the Nazis. Each one, laid flush with the cobblestones, begins with the words "Here lived" followed by a name and dates. German artist Gunter Demnig started the project in the 1990s, first honoring Sinti and Roma victims, and it has grown into what the film calls the largest decentralized memorial in the world, with over 100,000 stones placed so far, often researched and funded by ordinary residents digging into their own street's history. Interviews follow descendants and local volunteers, including younger people encountering this history for the first time through the plaque outside their door. The film also shows the resistance the project faces in cities like Munich and Paris, where residents and officials have blocked the stones from being laid, turning a memorial into an ongoing argument about how, and whether, a neighborhood should remember.