Identical twins Nik and Jon Daughtry run a graphic design company together. They drive the same car and even own identical dogs. Now these two brothers are building two near identical houses next door to each other in Sheffield. Raised up on steel stilts on the site of an old corn mill, the houses pay tribute to Sheffield's industrial past. Huge steel frames with exposed blockwork and black steel cladding should create two sleek and modern family homes. But Nik and Jon's plan is incredibly ambitious. Not only do they want to build the two houses for the price of one, but the materials and finish have to be absolutely perfect. With a tight budget, it's an almighty stretch from the start. As delays, overages and imperfections hit, it's clear the twins' intuitive and incredibly close relationship will be tested like never before.