Hey guys and gals! Here is my 100% Achievement Guide for Infliction!
Once you pick up the radio in the master bedroom, you will be transported to a police station (Light blue halls etc).
Once you turn the corner, you can see a bending machine you can keep pressing for another achievement, and just to the left a bit of that machine is an elevator.
Simply interact with the button to get the elevator to come down, then a whole load of blood and a baby doll appears very creepingly to scare you and unlock the achievement!
Go to 21:15 in my video to see where and how it unlocks.
Hope This Helps!