Meeting with the French composer Colin ROCHE. He evokes the origins of his vocation for music, the importance in his creative journey of other arts such as painting and poetry, in particular that of Francis PONGE, his musical writing, his influences and the different artistic encounters which marked his career like that with the videographer Simon ARTIGNAN on “La robe des choses”.The documentary consists of the composer's testimony, title notes composed of photographs, the recitation of an extract from the poetry "Le notebook du bois de pins" by Francis PONGE by René HERNANDEZ and extracts from the works "Bristol. .. then blow", "The dress of things" and "Ground zero" at the Cloître Saint Merri, of "The dress of things" with Eve-Marie CARAVASSILIS on cello and of "Ou bien... ou bien... l 'matches".