From the Planet of the Humans

Overview:

A border inspection at Ventimiglia, between Italy and France, turns into a fantastical fairy tale narrated by a chorus of frogs, wherein a scientist experiments with rejuvenation techniques using monkey testicles. Dr. Voronoff was a real person, and was world-famous in the 1920s. His villa stands on the border where migrants try to cross. But it is as if they do not exist.