Rent The Mad Fox (1962)

Amidst a mythically-depicted medieval Japan, a court astrologer foretells a great disturbance that threatens to split the realm in two. His bitter and treacherous wife conspires to have the astrologer killed, as well as their adopted daughter, Sakaki (Michiko Saga). The astrologer's master apprentice, Yasuna (Hashizô Ôkawa), who was in love with Sakaki, is driven mad with grief and escapes to the countryside. There, he encounters Sakaki's long-lost twin, Kuzunoha, and the pair meet a pack of ancient fox spirits in the woods, whose presence may be the key to restoring Yasuna's sanity, and in turn bringing peace to the fracturing nation.