Professional deep-sea diver Adrian Corrigall is obsessed with concrete. He fell in love with this cold uncompromising material in the skateparks of Scotland. Now he's convinced his wife Megan to agree to build their new family home in rural East Sussex almost entirely out of the stuff - both inside and out. No cladding, no carpets, no plaster or wallpaper - this will be as pure a concrete building as possible. Construction involves cutting-edge technologies conceived in Switzerland and never used to build a house before. The hope is these new mix recipes will overcome the historic negatives of concrete and keep costs down. However, the perils of being a pioneer soon become evident. With both schedule and budget under strain, Adrian is forced to resume work as a diver, servicing North Sea oil installations and taking him away for a month at a time. With Megan now left juggling the build, all the while looking after three young children, the concrete dream seems a long way off.