I have a job that I hate. It's the night shift and every day, I go to work in the same place – a dilapidated office building in the middle of nowhere. But today, something is different. Today, I feel like someone – or something – is following me everywhere I go. As I walk the halls of the building, I feel a presence behind me; a menace that won't go away.

I'm filled with dread as I try to unlock the door to my office, knowing that whatever is stalking me will soon be upon me. It's a feeling of terror, unlike anything I've ever felt before...

The door creaks open, and I turn around, expecting the worst. But instead, all I see is an empty hallway. I take a deep breath, relieved – until I feel something cold and clammy grab my wrist. The terror that washes over me at that moment is like nothing I've ever felt before...

And then everything goes black.