Andrew and Larissa meet when she is a music student and he is studying physics. As his career progresses, he is recruited to work at "Hexagon" and Larissa comes with him, meaning that they are saved from being outside during the "Extinction". Then, suddenly, Andrew disappears and everyone but Larissa says he is dead. Larissa is determined to find him, even if he is lost in the virtual world of "Nirvana". 
 If you are confused about a lot of the terms above, I have to tell you that I think the author was too; indeed I thought that I must not have downloaded the whole novel as it seemed to start in the beginning of something. 
 As I carried on reading I did grow to like the characters (particularly that of Larissa) and have a slightly less vague idea of what "Hexagon" and "Nirvana" were supposed to be, but I do think this book could do with a better edit as the storyline is actually quite appealing but is so muddled that it's really difficult to follow. As an idea and a work in progress, I really like it. As a finished novel however, it doesn't seem quite there yet. Still, there are more parts promised and I will be looking for them to see how the story continues and it was a quick and enjoyable read. Plenty of promise here which is not quite yet fulfilled.