Cave Women (1979, US, Annette Haven, full movie, DVD)

My name is Eau Claire Main. I'm an anthropologist with a government research team.

As a result of a new scientific discovery, the time continuum overlap process, a time machine in layman's terms,

we are now able to accurately delve into the history of our forebears.

As a branch of our studies, we investigated the habits of a group of prehistoric Cro-Mannians, their sexual habits.

In order to make our studies feasible, without the savage environment from which they originate,