The Fear of Death

Alexa, a cross country runner, a talented student, living a normal college life. Cody, another student, normally chilling in college, nothing too.. crazy.. or is it?
On a normal day, a student is killed. By who? We don't know.
The staff is missing. Where? We don't know.
There is no way out of the buildings. Why and how? ...we don't know.
Will Alexa and Cody survive this killing spree?
Only one way to find out..