When small-time architect John Gowan awakes in hospital with amnesia, he learns he is the designer of a world-famous building, replacing one destroyed by terrorists. But his world becomes a nightmare when a spiralling darkness stops him from seeing or remembering anything about the building, threatening his very existence if his secrets are exposed. Expected to fulfil his responsibilities with the media, his client, his own company and personal relationships, he desperately seeks the truth before it's too late.