Henry Volney (Yves Montand) is a crusading district attorney who refuses to believe the official investigation on the death of an assassinated President in this uneven suspense thriller. He interview a waitress who is the only one who can positively identify the killer, but conspirators trace his call and are able to capture him. Montand gives a good performance, but the plot is too full of holes to be effective and is too implausible to be believable.