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." Hello, DarknessOnly Murders in the Building : S...
" Hello, Darkness " is the of Season 2 of Only Murders in the Building . Mabel and the others suspect the killer is