Rhodan learns from Andorrh Mikael, the Deputy Director of the TLS, that nobody knows how many Jajs are still hiding in the Sol system. Orion Mirek Desch leads the search for the shapeshifters of the Atopic Tribunal but has so far not been successful. After all, the Onryones of the ZAATRO, the Space Father of the Sol system, are peaceful. Mikael also has a liaison there, his name is Torin Khambatta. Since Rhodan cannot risk the Jajs spying on his plans, he personally participates in the hunt. He puts on a body mask and becomes Orion Desch's new partner. The two review reports of unusual incidents and become aware of the death of a certain Ivar Colorti. The TLS had its sights set on the man before, because he campaigned for a group of holosionists who, at his instigation, received permission to present their interactive works of art in the Holo Museum of the Solar Residence. Desch and Rhodan now suspect the holosionists of being involved in the possible murder of Colorti.

In truth, the Tefroder secret service is behind the matter. Lipata Dhezeb has been set upon the holosionist Fernand Beaujean under the code name Liya Debbouze. Blinded by love, the young man made it possible for the agent and her partner Orgon Pernell, to manipulate the synaptic stimulators. These devices convey sensory impressions so that the holograms look completely real. Their impulses were strengthened in such a way that they harm museum visitors. Liya Debbouze is on site. After murdering her lover and all of his colleagues, she leaves the Residence unnoticed. Panic breaks out there. Desch and Rhodan try to help. To limit damage, the energy supply must be switched off. However, the security systems are also paralyzed. Rhodan causes the Residence to be lowered into the case. He thus plays into the hands of Pernell, who has deposited a bomb in Residence Lake. The landed Residence is shaken by an explosion, and Pernell enters.

Just in time, Rhodan realizes that all of these events are just for distraction and what Pernell really intends to do. The assassin is already in the process of feeding Balpirol protein conductors into the LAOTSE’s supply system. With Gucky's help, Rhodan can prevent the Posbi viruses from becoming active at the last moment and making the Solar Residence's computer an enemy of the Terrans. Desch shoots Pernell dead. Rhodan is happy to tell his partner who he really is. But he first receives a message from Gucky, who urgently advises him against doing so.