Gifted student in computer science, Sony develops, with his brother Ray, a virtual reality helmet, "the Grenz". This technological gem is spotted by Geschwister, who offers them to come work for her and develop a game that would go with, "World of Games". Obligated by their project and its success, the two brothers gradually lose touch with reality, living only in those they invented. But during an ultimate test, a virus is introduced into the program, precipitating Sony, Ray and their acolytes in a situation as new as dangerous ...