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A cop wrestles with his anxieties as he tries to track down a dangerous criminal in this thriller from Russia. The shadow of fear hangs over St. Petersburg as a serial killer roams the streets; every Wednesday, the fiend claims the life of a girl between the ages of nine and twelve, and both the press and the citizens demand that the police put the murderer behind bars before he strikes again. Captain Peter Moiseyev (Alexei Guskhov) is the detective in charge of the case, and he's aware of the gravity of the situation, but Moiseyev is not handling the pressure very well, and his own fears are threatening to overwhelm him. A clue takes Moiseyev to the town of Svetlogorsk, where a puzzle may lead the detective to the murderer. The One Who Switches Off The Light was the first feature film from director Andrei Libenson.