A journalist attempt to stop a mysterious criminal : "Barbe rousse".
Hopson, a prestigious scientist, studies the effect of snake venom to cure many diseases of mankind. His son enlists in the army when the Great War breaks out. A series of circumstances will lead the scientist to change his way of thinking about values and principles that until then he had as immovable.
Guards are posted to protect various important figures who are threatened with a phone call, that by 10 p.m. the following night they will be dead.Somehow they still meet their deaths, despite the protection.
