Andula, an innocent Czech girl from a factory town, is desperately in search of love. She believes she's found it when she beds Milda, a charming young musician visiting from Prague. Milda, however, is only looking for a casual encounter, and leaves town assuming he'll never see Andula again. But when Andula doesn't hear from him, she packs up and heads to Prague, to the surprise of Milda and his parents.
In the Oregon mountains, a pair of hunters encounter a machete-wielding killer in an abandoned church. Meanwhile, five campers arrive to examine some property one of them has inherited but are warned by the forest ranger not to venture forth. Soon after they set up camp, they begin hearing strange noises, encounter a mysterious singing girl and start disappearing one by one.
A strange signal arrives on the Earth disturbing all communications, while an UFO appears above the Antarctic sea. Captain Alex Hamilton is sent with his spaceship and crew to the space outside the Solar System to find the origin of that signal. They reach an unknown planet where a giant robot enslaved a whole population of humanoids by taking their psychic energies.
