When architect Neil Carter installs a modern uPVC slide and fold door in his new home, he expects it to seamlessly connect his indoor and outdoor spaces. But as he starts using it, strange things begin to happen—objects appear shifted, voices echo from the other side, and fleeting glimpses of unfamiliar figures make him question reality. Is the door simply a gateway to his backyard, o... https://thegreenfortune.com/product-categories/upvc-slide-fold-door/