Given the ambiguity, I'll offer a general approach to what one might find or do if they were looking for a download related to such a title:
If "Human Animals" (1983) is a lesser-known title, it might require more effort to locate through conventional means. Libraries, film archives, or specialty stores might offer clues or direct access.
: A "proper feature" release is available on Blu-ray from Mondo Macabro , which includes a long program with the director as a bonus feature. You can also find it at retailers like Amazon and Barnes & Noble .