In the crypt, Leduc (Serge Riaboukine), French businessman prepares renovation of an old neighborhood in Baile Herculane to achieve a new real estate project. In the basement of a building discovers an ancient fresco probably dating from Roman times. It could be placed in the national heritage and renovations could be delayed or even abandoned. For one try to dispose of it, giving the fire. It remains locked inside the building. Will he survive alone, like Robinson on his island, finding their way to freedom?