Red Beard is a 1965 Japanese jidaigeki film co-written, edited, and directed by Akira Kurosawa, in his last collaboration with actor Toshiro Mifune. Based on Shūgorō Yamamoto's 1959 short story collection, Akahige Shinryōtan, the film takes place in Koishikawa, a district of Edo, towards the end of the Tokugawa period, and is about the relationship between a town doctor and his new trainee. Fyodor Dostoevsky's novel Humiliated and Insulted provided the source for a subplot about a young girl, Otoyo, who is rescued from a brothel.