Stray Kids (1970)

This story is about a young man living in the streets. He wears a wolf mask to hide his identity. Running for his life, he holds in his possession his journal which contains stories about stray kids mixed in with evidence collected against Santos, an entrepreneur who has no moral boundaries, a dirty police officer under Santos' pay roll, Bones who is head of a gang controlling a major water ditch in the city and Lokito, who is a hired killer.