Each time you are unhooked or unhook yourself, the Hook breaks and the Killer's Aura is revealed to you for 4/5/6 seconds.
A Hook broken by Breakdown takes 180 seconds to respawn.

Increases your Recovery rate from the Blindness, Broken, Exhaustion, Exposed, Haemorrhage, Hindered, and Oblivious Status Effects by 20/25/30 percent.
This effect also applies to all other Survivors within 8 metres of your location and lingers for 15 seconds.

Survivors you unhook benefit from the following effects:

Extends the duration of their Endurance Status Effect by 6/8/10 seconds.
Extends the duration of their Haste Status Effect by 10 seconds.

Whenever the Killer is within 36 metres of your location, Spine Chill activates, lighting up its icon.
If there is a Terror Radius present, Spine Chill will reveal its intensity using its icon.
If the Killer is within range and looking at you with a clear line of sight, you benefit from the following effect:

Increases your Action speeds in Repairing, Healing, Sabotaging, Unhooking, Cleansing, Blessing, Opening, and Unlocking by 2/4/6 percent.
This effect lingers for 0.5 seconds.

When another Survivor is picked up, Background Player activates for the next 10 seconds:

When you start running, break into a sprint at 150 percent of your normal Running Movement speed for 4 seconds.
Background Player causes the Exhausted Status Effect for 60/50/40 seconds.

Background Player cannot be used when Exhausted.

You suffer from the Broken Status Effect for the entire Trial, but benefit from the following effects:

Pools of Blood are suppressed.
When injured or dying, Grunts of Pain are reduced by 25/50/75 percent.
Your Recovery speed is increased by 15/20/25 percent.
You can recover fully from the Dying State.