The Cardiff Royal Infirmary was a hospital in Cardiff. In 2006, Owen Harper worked there. His fiancée, Katie Russell, was taken into care there after a cancerous tumour was identified in her brain. It transpired that it was in fact a tumour alien, which killed Katie and forced Torchwood Three to enter the hospital to dispose of the creature. This event made Owen mentally unstable, leading to him being dismissed from his job. (TV: Fragments)