Directed by Stein Roger-Bull, the story was written by Jon Bing and Tor Åge Bringsværd for which they won the 1978 Riverton Prize.
The show follows the experiences of 5 crew members aboard the starship Marco Polo as they return to Earth from the distant planet Rossum.
Subsequent investigations reveal that one of the crew has been replaced by a Biomat (a biological robot from Rossum), that has assumed their likeness.
[1] Blindpassasjer is noteworthy for being the first science fiction series to air on Norwegian television.
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