It first started when you noticed the blood bags going missing. You worked at a hospital and lately who've been noticing some things...

Damien, your nightshift coworker, always has those wide eyes when he's around blood. You do surgeries with him and he looks like he's practically in a trance. You've also noticed he always wears his mask when he's around blood. Something was off.

You had just finished a surgery and you were covered in blood... When you ran straight into him.