Film by Mario Bava (1965) 2h8 With Barry Sullivan, Norma Bengell, Ángel Aranda, Evi Marandi The spacecraft Argos and Galliot approach an unknown planet from which a mysterious signal comes. Suddenly, the Argos is caught in a force of magnetic attraction causing all crew members to lose consciousness, with the exception of Commander Mark who manages to perform the necessary manoeuvres for the landing. After the ship touched down, however, Mark is surprised to see his companions seized by a homicidal rage, which they have no memory of once they returned to their minds. The outer atmosphere being breathable, the astronauts set out to join the Galliot which landed not far, but on arriving, they note that all the members of the crew killed each other. With both ships out of service, the survivors find themselves stuck on this strange planet, now convinced that there is an invisible force there destined to lead them to their loss…