There is a point in the first institution scene where you will helping a women come out of a catatonic state.
You will need a mixture of drugs nw68 and an sw##, and dont forget to grab the blanket from the storage room on the b1 floor.
After helping her, Jack?, our murdery friend will come by and you will need to hide. On the far left of the room with the woman in it, there is a vent you can interact with.
Press A to interact with said vent, and as soon as you land the achievement will pop.