Complex sentence: The documentary looks at Blackout, an immersive horror experience where participants willingly take part in a haunted house type event where the scares are tailored to their individual fears, which they relay to the event coordinators prior to fully entering the show.
Split into simpler sentences: The documentary looks at Blackout, an immersive horror experience in which participants willingly take part in a haunted house type event. The scares are tailored to their individual fears, which they relay to the event coordinators prior to fully entering the show.