ghost light.

Ghost light: "Before the entire theater is closed for the evening, all lights except for a single, exposed, incandescent bulb are left on stage. For practical purposes, to allow the first person in the next day some light to find the main switches. For superstition, to give the ghosts who inhabit the theater some light to perform by."
Living in New York as a working artist was hard enough. The projects, the lifestyle and your own conflicts had already started piling up but when your best friend and roommate Lydia, an actress in Charlie Barber's company Exit Ghost, starts meddling with your social life, chaos and intrigue ensue. Charlie Barber manages to not only capture your time and curiosity but your emotions too, pulling you into his web of a world.