The Wolf of Davao, a death row inmate who escaped from prison to exact revenge on Yamanami Takuzo, who betrayed his former comrade, kidnaps Dr. Shoda, a leading orthopedic surgeon, and disfigures his own face. In an attempt to save Yamanami, who has now reformed and is living a peaceful life, private detective Aji Yahachi falls in love with Yamanami's daughter, Yoko of Valerina, during their great adventures with his assistant Gomi. The disfigured wolf's face looks just like Aji's, so Aji disgui...