The article describes an experience of supervision in a public health institution. Supervision is required in a phase of reorganization of home care for psychiatric clients housed in apartaments and is aimed at a broad group of mental health workers. Supervision is renamed plurivision to emphasize the aspects of cooperation and exchange; it’s done in group session trough psychoanalitic psychodrama and collage. Plurivision allows mental health workers to express their feelings of inadequacy ,marked by a severe superego. During sessions three areas are explored : group, space and time; they are knotted to each other by a dimension identified as "plus-une" because of its references to the cartel theorized by J. Lacan. Factor "plus-un" crosses the three areas and consists of life and living elements: objects and things. Things, unlike objects, are in relation with Heimlich. Tomato peel (a thing) appears in the scene of a psychodrama session; it’s on the kitchen floor and causes the fall of a worker but also produces a change of perpective; so emotions and representations become less persecutory for the entire group of mental health workers.
Keywords: Plurivision, psychodrama, collage, objects/things, plus-un factor, Heimlich