La cité d’expérience of Noisy-le-Sec, experimental site of prefabricated houses created at the end of World War II, is today the subject of a controversial heritage. The district was registered at the “additional inventory of historical monuments” in 2000, questionning dramatically its future. A multidisciplinary team (a designer, a multimedia scriptwriter and a PhD student) was created to tell this story through a narrative based on an interactive view of the district, archive images of singular houses and video interviews with experts and inhabitants. This project question a methodological issue in digital humanities: how to reformulate a research process for an uninitiated audience by means of digital artifacts ? How to use differents types of media and data to tell a contemporary controversy ? Une Balade au Merlan has to be seen as a companion to Caroline Bougourd's PhD thesis.