Castle of Owls

With the war against Korea looming on the horizon, Hideyoshi Toyotomi, the 'Taiko' becomes the target of an assassination attempt to be carried out by the Iga Clan of ninja spies. Master spy Juzo Tsuzura is assigned the task, but first he must defeat a former Iga spy who has become a traitor and outwit the treacherous woman that is trying to seduce him.
~~ Adapted from the novel by Shiba Ryotaro.