'' A Quiet Place in the Country '' , the last of his films co-authored with Guerra , focuses on solitude and the artist 's romantic agony . The film won a Silver Bear award at the 19th Berlin International Film Festival . He then directed four films which earned him recognition for his analysis of schizophrenia . '' Investigation of a Citizen Above Suspicion ( 1970 ) '' was about the police-force . '' The Working Class Goes to Heaven ( 1971 ) '' focused on the worker 's condition . '' Property Is No Longer a Theft '' ( 1973 ) emphasized the role of money in our society and how power destroys the individual . '' Todo modo '' ( 1976 ) , which was adapted from the eponymous novel by Leonardo Sciascia , is about the warped psychic structure of the power moguls among the Christian Democrats . '' Investigation of a Citizen Above Suspicion '' won the Academy Award for Best Foreign Language Film
19th Berlin International Film Festival
19th Berlin International Film Festival
Elio Petri