Facundo Aguilar, pilot of the space shuttle Condor, wakes up in an escape ship lost in space. The entire crew has been infected by an alien organism that they accidentally encountered on Keppler 22B, which destroyed the entire mission. Aguilar and Captain Breccia were the only ones to escape alive. However, on the return trip to Earth, Aguilar discovers that Breccia is also infected and must kill him. Tragically, Aguilar is lost in space. With no fuel to reach Earth and the small ship's power running out minute by minute, he prays that Breccia's corpse will not return to him. Between guilt and madness, Aguilar has multiple visions of the organism, which is believed to be hidden in his ship, and sinister conversations with the body of his captain.