Sense Sonnet - Chiller

Reflection

I am at home and all alone.
I cannot sleep. It's late at night.
In the window the moon is shown.
There is a noise. I feel some fright.
In the window there moves a shape
That looks like someone with a knife.
Perhaps it is only the drape
That's scaring me in limb and life.
I get courage to cross the room,
Watching the window as I go.
Too late, I see impending doom.
What can I do? I do not know.

The glass reflects the shape I see.
A knife is raising behind me.