This is the spooky moment the ' ghost ' of a woman walks through the doors of a hospital in where she had died the day before.
CCTV footage shows a security guard at Finochietto Sanatorium in Buenos Aires, Argentina, greet a patient only he can see and directs her to a doctor's office.
But hours later, when he checked to see where she had gone, spooked medics told him the only patient with that name had died yesterday.
