Aufheben (2000)

Daniele has discovered his hitherto unknown brother's death certificate. After a long time he scrapes up the courage to confront his parents with his discovery. They confess that they had another son with same name before him, but that he died after living for just three days. He decides to leave to look for this family ghost on a trip that will end up with him in front of the dead Daniele's tomb.q