You feel a hard blow to the head and you come to your senses. A stranger is standing in front of you. His clothes are torn, his face is twisted with pain, and tears glisten on his cheeks. The young man has hit you in the face in desperation, in a futile attempt at self-defence, and now with shaking hands he is trying to stop the bleeding from the numerous cuts on his arms. Noticing the change in your facial expression, the stranger pleads with you again and again:

"P-please... please stop... I'm...I'm begging you..."

You look down at your hands - the black latex gloves are covered in fresh warm blood, the scalpel shimmers silver in your hands. The realisation comes to you quickly: you are a known serial killer.