True-False Stories narrates the peregrinations of five imaginary collectors born in the Valais in the Swiss Alps, through their collections of historical, ethnological and artistic objects. Staged in five museums by artists Øystein Aasan, Paolo Chiasera and the curator Benoît Antille, these invented collections immerse the spectator in the universe of these colourful characters who lived between the 17th century and today. Their destiny sheds light on important aspects of the history of this region which are evoked in their fictional biographies. As for the texts by Swiss writer Noëlle Revaz, they give the characters life and allow the reader to better understand the relationship between them and their objects.