British Army radiation drills at a remote Scottish base attract a subterranean, radioactive entity of unknown nature that vanishes, leaving two severely radiation-burned soldiers... and a "bottomless" crack in the earth. Others who meet the thing in the night suffer likewise, and with increasing severity; it seems to be able to "absorb" radiation from any source, growing bigger and bigger. What is it?? How do you destroy a thing that "feeds" on energy?
The morning Stella decides to take her own life, a stranger knocks at her door claiming the guest room he booked for the night. Surprised but charmed by this man who seems to know her very well, Stella decides to let him in. But when Sandro, the man who broke Stella's heart, joins them at home, this odd situation turns immediately into chaos.
Four astronauts have to stay 1000 days in a space station around Earth in order to prove that a trip to Europa, one of Jupiter's moon, is possible. The experience goes well until something happens on earth.