An evil spirit lives in an apartment building where one floor was completely burned down one day. After the tragedy, local residents begin to feel the presence of an evil force, which becomes the source of more and more troubles. The burned-out floor was closed, the button in the elevator was squeezed out. It is impossible to get on it, only if the spirit does not want it. Three friends decide to ride the elevator on a bet — so a simple prank turns into a nightmare when one of them gets stuck on that ill-fated floor.