Lift hoax scares office workers
A new advertisement tricks lift users into thinking they are about to plummet to their deaths.
South Korean company LG created the optical illusion to show off the quality of their new screens.
Technicians are shown installing a grid of new IPS monitors on the floor of the lift, in an office block.
Unsuspecting people are then shown using the lift - as the lights darken and the floor appears to fall away, revealing the shaft below.