After a bad breakup, a college-aged Parisian moves into her father's flat only to discover that he is living with his new girlfriend - a young woman her age.
The world falls into chaos after a supernatural darkness descends. In the turmoil of the new reality, Tony fights for survival together with his ailing mother and son.
Who is this Karim D. ? The new young writer whom the media can't get enough of? Or his alias, Arthur Rambo, the author of old hate-fuellled messages which are dredged up, one day, from social media websites?