Not long from now, in a recognisable yet changed London, Signy and Matthew lead a dull, difficult life. They've only really stayed together for the sake of their six year old son, Jed. But they're surviving, just about. Until the day the technology that runs their world stops working. Unable to use their phones, pay for anything, even open the smart door to their flat, Matthew assumes that this is just a momentary glitch in the computers that now run the world.