**Update** Some people are reporting that if the achievement is not unlocking you might need to get the Knife from the butcher first **
This is earned at the start of Chapter 5 of Blood and Water. At the start of the level, you will be at the bathhouse waiting room. Head up through the double doors covered in blood and through the hole in the wall you made to get to the witch hanging on the wall. You will notice she is gone interact with her stand and turn around and leave the room. Slowly start walking right in the hallway till you see a face in the hole you just came out of. Head back inside and the witch will kill you earning this achievement.