Famed Swiss architect and artist Robert Maillart was renowned for his concrete bridges; this documentary examines the elegant design of his engineering masterpieces, which, the film argues, embrace both functionality and aesthetics. Instead of following a traditional journalistic structure, director Heinz Emigholz's spellbinding film reads more like ethereal visual poetry, allowing the beauty of Maillart's work to speak for itself.

Dans le cadre de sa série « L’Architecture en tant qu’autobiographie », Heinz Emigholz voyage à travers la Suisse pour constater à quel point le jeu entre le poids, la structure et la composition rend les ponts conçus par Robert Maillart dans la première moitié du 20e siècle si uniques.