Biagio Proietti
Director
A spaceship lands back on Earth after a failed mission, but the astronauts have been replaced by hideous creatures that can penetrate people's bodies and make them explode. A group of cave explorers are attacked by the monsters inside an underground cave, but the survivors are in for a surprise when they finally manage to escape the trap...
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Biagio Proietti
Director
Ciro Ippolito
Director
Belinda Mayne
Thelma Joyce
Mark Bodin
Roy
Michele Soavi
Burt
Fabrizia Castagnoli
Thelma Joyce
Donald Hodson
Mr. Raymond
Peter Shepherd
Peter
Valeria Perilli
Jill
Danilo Micheli
Bill
Roberto Barrese
Speleologist
Benedetta Fantoli
Maureen
Ciro Ippolito
TV Studio Director
Ciro Ippolito
Writer
