Clasificación IMDb: 6,3/10 (3380 votos)
Director/es: Mario Bava
Reparto Barry Sullivan (Como Capt. Mark Markary), Evi Marandi (Como Tiona), Stelio Candelli (Como Brad / Mud), Norma Bengell (Como Sanya), Ángel Aranda (Como Wess)
País: Italy Estudio: AIP
Duración: 88 minutos.
Género Terror, Ciencia Ficción
Argumento: In the near future the two spaceships Argos and Galliot are sent to investigate the mysterious planet Aura. As the Galliot lands on the planet her crew suddenly go berserk and attack each other. The strange event passes, but the crew soon discovers the crashed Argos - and learns that her crew died fighting each other! Investigating further, the explorers come to realize the existence of a race of bodiless aliens that seek to escape from their dying world.