The church of Santa Liberata in Turin is lit only by candles and a distorted night and lasting move its inhabitants: the parish priest Don Alfonso Pezza, the 'Engineer FIAT Neighbors, Miss Caldani English teacher, with the sexton Priotti two brothers Bortolon. On a cold Friday in February with the packed church, the Pezza is killed by a bomb in the final moment of his preaching and the case, which is called to investigate the Commissioner Santamaria, it soon proves incredibly complex.
