The episode centers on a massive in New York City, which complicates the trio's investigation into Bunny Folger's murder. As Charles, Oliver, and Mabel navigate the dark hallways of the Arconia, the blackout forces several characters into unexpected interactions while the "Killer" remains on the loose. Key highlights from the episode include:

A memorable B-plot involves Howard and a handsome neighbor who is stuck in his apartment during the outage.

The power outage creates a tense atmosphere, forcing the residents to rely on flashlights and candles.

Mabel and the others suspect the killer is using the service tunnels and the darkness to move through the building undetected.

Marv, one of the podcast superfans, roams the halls in a hazmat suit, believing the killer is the "Sixth Avenue Slasher."