Metamorphosis

Metamorphosis (1970) is a drama, thriller directed by Jacinto Esteva rated 5.8/10.

A rich businessman, Julián, runs a foundation that seeks cures for people with disabilities or abnormalities. During one experiment he finds an extraordinary being, but it is just a mirage, as cerebral abnormalities begin to appear, and the being does not want to return to its primitive state.