Push the shelf off of her.

You move over to her swiftly, putting a finger to your lips in a shushing motion. You crouch and put your shoulder to the shelf, lifting it up off of her. It is surprisingly light and you make quick work of it. Keira shuffles out from underneath and together you run for the exit, knowing that speed is of the essence. The only sound is the blood rushing in your ears. Finally you make it to the fire escape, out of breath but safe. You take a moment to check on Keira, who seems fine, then, shutting the door behind you, you make your way down the stairs. Quickly but carefully, you take each step, feeling the banister in the dark. You open the door on the ground floor with a click. There is a web of corridors which lead to the exit, and one which comes dangerously close to the lobby. Slowly but surely, you make your way.

When you come across the door to the lobby you can't help but peer through. The sight shocks and horrifies you. Inside are all your former friends and colleagues. Karen and Alex are in a state of severe undress with Harriet sandwiched between them. You can see Alex's penis sliding casually into her vagina as she thrusts her tongue deep down Karen's throat. Evelyn and a woman that you can only assume to be Clarice are fighting over Diane's sopping cunt, each voraciously stroking her clit with their long tongues. But what shocks you most of all is Linus. He stands with Gwen, watching over the display with a fanged smile. Suddenly his face goes dark and he turns to your former manager. They discuss something, but you feel a tug and turn to see Keira with panic in her eyes.
"C'mon!" She hisses. "Lets go!"

You forge down the corridors, trying your hardest not to think about what you just saw. You pause at an intersection to consider your options. Suddenly, you hear the banging of a door; you know you have no time to think. You grab Keira's hand once again and bolt for the exit, somewhere with a heavy enough door to aid your escape. You begin your sprint down the final corridor, a long one with only one door, a secured entryway, at the end. That is when you hear the bellow of your former lover behind you. Without turning, you push on with all your strength. Before you is the door with the keypad next to it. You punch in the keys, but a thought occurs to you: you can't lock the door from the other side...