Continuous Shot Zombie Horror

Single continuous shot, 15 seconds, no cuts. Realistic cinematic live-action style — gritty film grain, shallow depth of field, muted desaturated color grade with cold blues and sickly fluorescent greens, subtle handheld camera feel, A24 horror atmosphere.  Setting: a looted, messy convenience store at night during light rain. Shelves knocked askew with scattered remaining goods — fallen cans, torn snack wrappers, spilled bottles on the floor, a few products still standing. The large glass storefront door is barricaded from the inside with shopping carts and stacked chairs wrapped in chains. Outside: a dark rain-slicked street with dead streetlights.  Subject: a lone survivor — a tired man in his 30s, stubble, worn jacket, holding a flashlight. He stays inside the store at all times.  Action (continuous progression): the survivor calmly walks from the dark aisles toward the barricaded glass door, stepping around debris, flashlight aimed low. He stops behind the barricade and slowly raises the beam through the glass toward the street. As the light sweeps left to right, it reveals zombies shuffling slowly through the rain — first a few, then dozens, then hundreds wandering aimlessly down the entire block, limping, drifting between abandoned cars. None notice the store. He finishes the sweep and slowly lowers the flashlight, shoulders sinking in quiet defeat.  Camera: entire shot stays INSIDE the store, never crossing the glass. Slow tracking shot behind him as he walks, settling into an over-the-shoulder framing at the barricade — the zombies are always seen THROUGH the glass door, with the barricade carts and chains visible in the foreground of the frame throughout. The camera never goes outside.  Lighting and mood: flickering fluorescent interior, the flashlight beam as the only light reaching the street, rain glittering in the beam; slow dread, eerie stillness, hopeless quiet.