In modern society, houses are shells. In the film, the naked body becomes the house. Participants sleep in caves or lean-tos but rely entirely on their skin for temperature regulation. The camera lingers on goosebumps and sweat. It argues that clothing is the first lie we tell the world; nudity is the first truth.
The 1993 documentary Vivre nu : À la recherche du paradis perdu (Living Naked: In Search of Lost Paradise), directed by Robert Salis vivre nu a la recherche du paradis perdu 1993 best
If you just need a for similarity among rare/art films, you could average features of similar titles (e.g., Vivre nu (1981), Paradis perdu (1939/1993?), or Kebadian’s other works). But that’s speculative. In modern society, houses are shells