Castagnetti (informally known as 'Casta') is a private detective who doesn't do things by the book. He's dogged and lonely, impatient with the world of appearances and deceit. So when a pompous notary commissions him to verify that a missing person is 'presumed dead' in order to dispose of a dead woman's estate to the other heirs, Casta smells a rat. Before long he's reopening wounds from years...