Synopsis For the first time ever, the planet Earth has picked up a codel message from outer space. Manking is terrified by the idea of an extra-terrestrial invasion. A few months later, the twelve thousand inhabitants of Sepulveda suddenly vanish. This transit and free-trade harbour town, notorious for smuggling and bordellos, is put in quarantine. Magnetic disturbances and light phenomena make military and political leaders think that an extra-terrestrial attack is imminent and order Professor Larsen, a renowned astro-physicist and UFO expert, to make a rapid investigation in the ghost city. | 
