"Each time the Obsession loses a Health State, Remember Me gains 1 Token:

Increases the Opening time of both Exit Gates by 4 seconds per Token, up to a maximum of 8/12/16 additional seconds.
The Obsession remains unaffected by this penalty.
You can only be obsessed with one Survivor at a time."

Your Terror Radius is increased by 26percent.  Gain 100percent more Bloodpoints for action in the Deviousness category.

Increases the volume of Survivors Grunts of Pain by 25/50/50 percent.
Increases the volume of Survivors regular breathing by 0/0/25 percent.

Iron Maiden increases your Locker Search speed by 30/40/50 percent.
Survivors who exit a Locker suffer from the following afflictions:

Scream and reveal their location to you for 4 second.
Suffer from the Exposed Status Effect for 30 seconds.