burnham slams open the door to a dark room, pulls the string on a bare bulb. burned out.
burnham bangs through the door again, starts searching the darkened mechanical room, shining harsh light around its dingy walls.
in the mechanical room, the bouncing flashlight beam falls on a metal cabinet across the way. burnham runs to it, flings it open. circuit breakers. slams it shut.
burnham turns, sees another, smaller metal box, this one clearly labeled:
with a subhuman roar of anger, burnham rips the entire phone panel off the wall with his bare hands.