Star Maidens

In the distant Proxima Centauri star system, lies he planet Medusa, which is ruled by the female members of its society, and women enjoy a life of luxury and power while the men are resigned to carry out domestic chores and menial labour.
When a burning comet passes too close, the planet is shifted off its axis and sent hurtling through space, where it eventually settles outside Earth's solar system.
When two male servants named Adam and Shem learn of a world where males are considered equal to females, they decide to steal the spaceship belonging to Adam's mistress, Supreme Councillor Flavia, and escape to utopia on Earth.

When Professor Evans of the Astronomical Institute detects the arrival of the Medusan spaceship Nemesis on Earth, his assistants, Rudi Schmidt and Liz Becker set off to investigate the ship, but while inside the vessel, Rudi accidentally activates a device and is blinded. Meanwhile, the escapees Adam and Shem explore their new surroundings in an attempt to find sanctuary from their Medusan oppressors. Having failed with their earlier attempt to make contact to a herd of cows, the two men discover that the dominant life-form also has a humanoid form – and females.

While on the run from their Medusan pursuers, Adam and Shem take over a castle. Fulvia and Octavia demand that the authorities on Earth hand over their escaped servants, but are surprised to learn that the policemen on our world refuse to submit to their every whim. Undetered by this, the two Medusan leaders take Professor Evans' assistants, Liz and Rudi, as hostages. They then prepare to unleash the full force of a fear-inducing Medusan weapon known as the Nightmare Cannon upon Adam and Shem.

Octavia takes the damaged Nemesis ship back into space to have repairs carried out on it, taking Liz and Rudi with her as hostages. In exchange for the lives of the two humans, Fulvia demands that Adam and Shem return home with her, but the two Medusan men refuse, unless they can return to their homeworld as equals with the females. Liz and Rudi arrive on Medusa, were Rudi is put to work, while Liz is introduced to a life of luxury.

Two foreign scientists decide to take advantage of Fulvia's superior alien knowledge, by getting her drunk on champagne and then taking her to a country mansion, where they will connect her to a computer brain that will steal all her advanced scientific secrets. Meanwhile, her former servant Adam becomes jealous over the attention given to her, and decides to stage a rescue mission.

After President Clara falls victim to a mysterious illness. Liz determines that the cause is a cold virus that she herself brought to Medusa from Earth. Octavia travels to Earth to bring back Professor Evans in an attempt to save the President's life.

Convicts Adam and Shem are exposed after Fulvia pressures the media to warn people to look out for them. Adam and Shem hide out in an empty apartment. When the law catches up with them, Adam tries to make a run for it but is caught. Shem narrowly escapes with the help of a girl.