The Cyrno spaceship leaves Earth and heads for the planet TEM4 in response to a distress signal – but when they arrive, there is no sign of an emergency. As commander Akala prepares the spaceship to leave, the ruler of TEM 4 invites her and her crew to a party, where they are incapacitated by their mysterious and malevolent host.
Suko, the Cyrno’s navigator who has stayed behind to protect the ship, uncovers the plot and a dark secret concerning the natives of TEM 4.