Each time a Survivor is hooked for the first time, you gain a token.  Upon reaching 4 tokens Grim Embrace activates.

The Entity blocks all generators for 40 seconds.  The Obsessions aura is revealed to you for 5 seconds.

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.

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

At the start of the Trial, the Auras of all Survivors are revealed to you for 7/8/9 seconds.
Extends the duration of a Survivors Aura being revealed to you by +2 seconds.
Lethal Pursuer benefits from its own effect.

Whenever a Generator is repaired to 70 percent, you benefit from the following effects:
Triggers a Loud Noise Notification for that Generator, revealing its location.
Grants the Undetectable Status Effect for the next 12/14/16 seconds.
Tinkerer can only trigger once per Generator per Trial.

After damaging a generator this perk becomes active for 60 seconds.

The generator regresses at 200percent of the normal regression speed and you can se its aura in yellow.

Each time a Survivor completes a good Skill Check on a generator affected by this perk, you receive a loud noise notification.