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An empty flooded vintage office hallway with floating chairs and a glowing computer monitor on a submerged desk.
Made with the free video prompt on PromptifyLab.

Video prompt Horror & mystery

Liminal Flooded Hallway AI Video Prompt

Liminal horror thrives on familiar spaces rendered completely wrong. This prompt generates a continuous first-person wade through an endless, waterlogged beige office corridor that ends with a gut-wrenching realization. You will capture authentic water displacement, atmospheric hums, and a clean surveillance reveal that keeps viewers replaying.

See the full prompt ↓
  • Aspect9:16
  • Length24 seconds
  • LevelMedium

Liminal horror thrives on familiar spaces rendered completely wrong. This prompt generates a continuous first-person wade through an endless, waterlogged beige office corridor that ends with a gut-wrenching realization. You will capture authentic water displacement, atmospheric hums, and a clean surveillance reveal that keeps viewers replaying.

TypeVideo
Best withSora 2, Runway Gen-4, Veo 3.1, Kling 2.5
Aspect ratio9:16
Length24 seconds
DifficultyMedium
NicheHorror & mystery

Flooded liminal spaces and 'The Rain Rooms' aesthetic are dominating short-form video feeds. Audiences are hooked by the strange contrast of harsh corporate fluorescent lighting mixed with calm, rising indoor floodwaters. The surreal dread of being watched inside an impossible maze drives massive comment-section debate and repeat watches.

The master prompt

Copy it as it is, or change the parts in [BRACKETS] to make it yours.

Master prompt4,411 characters
Create an original psychological horror video in the style of found-footage analog documentary shot on a vintage 16mm handheld camera, capturing a slow, continuous first-person exploration through an endless submerged office hallway.

CHARACTER:
The viewer is the protagonist in a low-angle, first-person point of view. No face is visible during the walk. Visible lower body reveals wet dark gray wool suit trousers soaked up to mid-calf, and scuffed black leather oxford dress shoes splashing methodically through ankle-deep water. Physical movement includes a subtle, heavy wading gait with realistic momentum and body sway. Wardrobe remains identical throughout the sequence.

SETTING:
A continuous, sterile, windowless corporate corridor from the late 1980s. Saturated commercial beige vinyl wallpaper peeling slightly at damp baseboards. Waterlogged acoustic drop-ceiling tiles sag under weight, with dirty water steadily streaming down in thin, continuous curtains every few yards. The floor is covered in six inches of dark, murky rainwater that ripples realistically against door frames. Identical blank wood-grain doors flank both sides, each bearing tarnished brass room numbers in the high 400s (402, 404, 406). At the far end, an unlit T-junction corner turns right into a wider reception lobby containing waterlogged industrial carpeting, two floating swivel chairs, and an oak veneer front desk holding an old cathode-ray tube surveillance monitor.

CINEMATOGRAPHY:
Shot on a wide 18mm equivalent lens held at low chest height (approx 3.5 feet off the ground) to emphasize the water surface. Shaky, naturalistic handheld camera motion with gentle vertical bobbing synced to wading footsteps. Lighting comes exclusively from buzzing, flickering cool-white overhead fluorescent tube fixtures, with intermittent electrical brownouts creating strobing reflections in the water ripples. Muted institutional color palette: murky greenish-beige, dull brown, tarnished brass, and cold fluorescent white. Subtle 16mm film grain, gentle halation around tube lights, and slight lens vignette with tiny water droplets on the outer glass edge.

TIMESTAMPED STORYBOARD:
[00:00-00:04] THE INUNDATION — Low-angle POV wades forward through ankle-deep murky water. Two yards ahead, ceiling panels give way, dropping a steady torrent of indoor rain onto the surface. Water rings distort the reflection of buzzing fluorescent strips above.

[00:04-00:08] NUMBERED DOORS — The camera pushes forward at an even, cautious pace. Black leather shoes splash past doors marked 412 and 414. A distant two-tone elevator chime rings out, muffled and dull, from an unseen shaft far down the hall.

[00:08-00:12] THE FLICKER — An overhead ballast sizzles. The corridor lights snap black for a half second, then buzz back to life at half brightness. Floating paper forms and manila folders drift lazily past the viewer's knees.

[00:12-00:16] THE THRESHOLD — The hallway terminates at a blind right turn. The camera slows, approaching the corner. Murky wake waves bounce off the damp drywall baseboard. Muffled humming vibrations rattle the water surface in concentric rings.

[00:16-00:20] THE RECEPTION POOL — The camera pans smoothly around the corner into an open lobby. Two vintage gray fabric office chairs float tilted in knee-deep water. In the center sits a waterlogged wooden reception desk with an active, glowing beige CRT monitor angled toward the corner.

[00:20-00:24] THE FEED — The camera wades close to the desk. The glowing green-tinted CRT monitor displays a grainy, black-and-white top-down security camera angle showing this exact corridor, featuring the back of the wet dark gray suit jacket of the viewer standing directly in front of the desk right now. The camera stops dead. The screen flickers once.

SOUND:
Low electrical hum of aged fluorescent ballasts at 60Hz. Constant sloshing and wet footfalls pushing through deep standing water. Steady patter of indoor rain dripping onto water. A distant, heavy elevator bell chime. Faint electrical spark snap at [00:08]. No speech or voiceover. Absolute silence behind the water sounds to emphasize isolation.

RULES:
No digital UI overlays, no watermarks, no CGI monsters, no cartoon physics. Liquid dynamics must look physically accurate with genuine displacement, wakes, and reflections. The perspective remains strictly diegetic first-person throughout.

Short version (for apps with a character limit)

Short prompt685 characters
Found-footage 16mm handheld POV video wading slowly through an infinite flooded corporate hallway. Ankle-deep murky rainwater covers the floor, with steady streams dripping from sagging acoustic ceiling tiles. Flickering fluorescent lights buzz above identical numbered doors. Visible lower legs wear drenched dark gray wool suit trousers and black dress shoes splashing with heavy footsteps. At a corner turn, reveal a flooded reception desk with two floating office chairs and an active beige CRT monitor. The CRT displays a live surveillance angle showing the back of the viewer standing there. Muted beige and cold green tones, realistic liquid physics, heavy tension, no monsters.

Shot-by-shot storyboard

  1. 00:00-00:04
    The Inundation

    Low-angle handheld POV moves through ankle-deep indoor floodwater as ceiling tiles drop steady streams of rain under buzzing fluorescent tubes.

  2. 00:04-00:08
    Numbered Doors

    The camera pushes past identical closed office doors as soaked leather dress shoes create visible ripples and a muffled elevator chime sounds.

  3. 00:08-00:12
    The Flicker

    Overhead lights sputter and drop to half-wattage while loose office papers float past the viewer's knees.

  4. 00:12-00:16
    The Threshold

    The wading pace slows as the camera nears a sharp right turn where concentric vibration rings pulse across the water.

  5. 00:16-00:20
    The Reception Pool

    Turning the corner exposes a submerged lobby with floating office chairs and an oak reception desk holding an active CRT monitor.

  6. 00:20-00:24
    The Feed

    The camera closes in on the glowing CRT monitor, revealing a live overhead surveillance feed of the viewer's back standing in front of it.

Keep the characters consistent

Paste this description into every clip so the character looks the same from shot to shot.

Character sheet179 characters
The Wader: First-person unseen protagonist. Visible lower body consists of dark gray wool tailored suit trousers soaked up to the calves and waterlogged black leather dress shoes.

Sound and music

Heavy 60Hz fluorescent light hum, rhythmic splashing footsteps through deep water, constant ceiling drip, distant muffled elevator chime, low sub-bass drone on the final reveal.

What to avoid (negative prompt)

Negative prompt176 characters
monsters, zombies, blood, jumpscares, 3D render look, clean water, sunny daylight, modern technology, flat lighting, text overlays, digital distortion artifacts, morphing hands

Remix it: ready-made variations

Submerged Hotel

Prompt199 characters
16mm POV walking through knee-deep carpeted water in a 1970s hotel hallway with floral wallpaper, brass sconces, and floating room service carts, ending at an open elevator door full of rising water.

Flooded School Locker Hall

Prompt197 characters
Low-angle first-person video splashing through calf-deep water in a mint-green middle school corridor at dusk, passing floating textbooks until reaching a submerged trophy case glowing from within.

Basement Server Room

Prompt176 characters
Handheld POV wading through flooded raised-floor server aisles with submerged orange patch cables, flashing blue LED server racks, and steam rising from the dark water surface.

Tips for each AI model

Model What to do
Sora 2 Specify 'fluid dynamics simulation' and 'diegetic handheld walking sway' in your camera line to keep the water wake consistent across cuts.
Runway Gen-4 Use a single continuous generation pass or extend feature rather than text-to-video splits to avoid changing hallway wallpaper textures.
Veo 3.1 Add '16mm film stock with lens flare and tube light halation' to keep the lighting grounded and prevent glossy 3D rendering.

How to make it, step by step

  1. Set up the aspect ratio Configure your video tool to 9:16 vertical orientation for mobile feeds or 16:9 widescreen for desktop display.
  2. Paste the master prompt Insert the full prompt block into your chosen model, ensuring negative prompts are placed in the dedicated negative field.
  3. Verify fluid realism Review the first four seconds to ensure the footsteps genuinely displace water rather than sliding across a flat mirror plane.
  4. Polish the soundscape Import the rendered clip into your editor and layer isolated wet footstep foley, fluorescent hum, and a low metallic chime for tension.

Posting kit

A caption and hashtags you can use when you share your version.

Caption + hashtags98 characters
Infinite beige hallways. Ankle-deep water. And a monitor that knows you are standing there.

Array

Questions

How do I stop the AI from generating cheap monster jumpscares?

Specify that the corridor is entirely devoid of people or creatures in your negative prompt. Liminal dread works best when emptiness and atmosphere carry the scene.

Why does the water look like shiny glass instead of real liquid?

Explicitly describe 'wake displacement', 'murky rainwater', and 'ripples breaking reflections'. Adding floating debris like paper sheets forces the model to calculate surface depth.

Which model handles the surveillance screen reveal best?

Sora 2 and Runway Gen-4 handle nested screens on CRT monitors with the highest fidelity. If the screen appears blank, prompt the monitor screen contents in an image-to-video reference frame first.

Trend spotted on r/aivideo. The prompt above is original and written by PromptifyLab.