Shortly into Chapter 3
You will be in the cellar with the Dr.
interact with the maid and the cellar will become red and you will have another vision. You need to interact with the vision at 3 certain points. Like all visions you can die, when the screen darkens just move away or you will die
Point 1 - When the two first start talking
Point 2 - He rips her dress
Point 3 - he threw her pendant in the tub
After all three are examined you will have another seizure afterwards the achievement will pop