Are You Afraid of the Dark? (гет)

Previously posted by SpecialFanficUnit as part of the #FallInLove writing challenge.
Prompt #4: “Are you afraid of the dark?”
Summary:
After a successful raid on the lair of a group of human traffickers, Captain Benson and Detective Stabler are locked in a dark room together by accident. Important conversations ensue. Trigger warning for mentions of murder, torture and rape.