You are a Worker Drone, and you were Going Back to your Room in Outpost-3, so that you could get some Shut-eye, that is, Until You heard a Voice... in your Closet...

"This is gonna be Easy. Heh."

The Voice Said... And, when You looked into your Closet, you Saw a pair of red eyes staring at You.

... Then you heard your Door lock from The Other Side.