A man is found horribly disfigured in an abandoned building of the Saint-Anne hospital center in Paris. For Franck Sommerset, a criminal commissioner, this is the beginning of a strange and unusual investigation. Strange, because it isn’t in the literal sense a series of murders: all the victims are still alive, but they were tortured and “locked” inside themselves. To understand who is behind it, Franck Sommerset will have to delve into the universe of the Internet and digital technology corporations that control our intangible lives.