An ex-soldier named Slobodan Antic, referred to by a friend as one of the last idealists, finds himself losing control over his own life when a man identical to him starts following him around, claiming to be a friend but behaving suspiciously. Before long his dealings with this doppelganger begin to cost him and his professional and romantic life grow more and more confused.

The story about a class of star-boys who travel with their research spaceship to "Outdoor School" to see life on Earth. Since they wear "snurke" - a kind of shiny badges, they are invisible to Earthlings. But the star-boy Gubang's desire to meet the Earthlings in personal is so strong that he can not resist. He befriends a girl named Maya and gives her "snurko" so that she could see him. This causes severe complications both on Earth and in spaceship. Of course, everything finishes with a happy end.

An old house by the sea is the scene of a number of puzzling crimes and deaths.