 Seeking revenge they take jobs as private investigators for the man they believe to be Horace Granville.Through a series of deadly traps, and with the help of a mysterious cloaked figure, known only as ""The Red Circle"", the daredevils begin to unravel the truth.In the first chapter, we are introduced to all the above facts, and even shown the secret room within the Granville estates where 39013 is keeping the real Granville.