One frosty night of 1702, a group composed of 47 blackclad people approach a luxurious mansion. They are divided into two, the first group assaults the front gate, the second attacks from the rear. They are former Ako vassals, at present ronin -- samurai who had lost their master.
During almost three hours of drama viewing we will get to know their reasons and doubts. And their tragical sense of duty above all.