Create a 30-second ultra-realistic cinematic Korean apartment horror short in 16:9 widescreen, specifically designed to grab attention within the first few seconds and maintain escalating tension until the final frame. CORE CONCEPT: A young woman returns home late at night and notices that the automatic hallway lights are switching off one by one behind her. At first she thinks it is a faulty lighting system. Then she realizes something is using the darkness to get closer. SEQUENCE 0–1.5s Immediate hook: Wide cinematic shot of a quiet Korean apartment corridor late at night. A young Korean woman walks toward her apartment carrying a small grocery bag. The fluorescent light directly behind her suddenly switches off. She stops and looks back. 1.5–3s — First anomaly: She continues walking. Another ceiling light farther behind her flickers twice and turns off. For a single instant, a tall human-like silhouette is visible underneath the next remaining light. It does not move. 3–4.5s — Impossible movement: She cautiously looks back again. The corridor appears empty. She takes one step backward. Another light shuts off. When the light goes dark, the silhouette is suddenly several meters closer when the next light comes on. 4.5–6s — Fear reaction: Close-up of her face as she realizes something is wrong. Her breathing becomes tense. She slowly raises her phone and activates the flashlight. 6–7.5s — Empty corridor: Her flashlight sweeps across the hallway. Nothing is there. The camera follows the beam naturally. She starts to relax—then notices a single wet footprint directly in front of her. 7.5–9s — Invisible approach: More wet footprints slowly appear on the floor one after another, moving toward her from the darkness. No creature is visible. She freezes. 9–10.5s — Escape: She suddenly runs toward her apartment. Controlled handheld camera follows behind her. Corridor lights extinguish sequentially in her direction, creating the impression that darkness is chasing her. 10.5–12s — Door struggle: She reaches her apartment, hurriedly searches for her keys and unlocks the door. Her hands tremble naturally. She enters and immediately turns around. 12–13.5s — False safety: She looks down the hallway. It is completely empty. She slowly closes and locks her apartment door. 13.5–15s — Something is inside: The apartment is quiet. She takes several steps away from the door. The hallway light inside her apartment flickers. In the glass of a nearby cabinet, a dark human silhouette can be seen standing behind her. 15–17s — Reflection horror: She notices the reflection and slowly turns around. Nothing is there. She looks back at the glass. The silhouette is now much closer to her reflection. 17–19s — Reality breaks: She spins around again. The apartment remains empty. Her phone suddenly begins ringing. 19–21s — Unsettling call: Extreme close-up of the phone screen. The incoming call appears to be coming from her own phone number. She hesitates before answering. 21–23s — Sound reveal: She answers. No voice comes through. Instead, she hears the unmistakable sound of footsteps coming from her apartment hallway—matching the exact rhythm of the footsteps she made earlier. 23–25s — Final reveal begins: Her front door slowly opens by itself. Beyond it is the dark apartment corridor. At the far end stands a figure that looks almost identical to her, facing away from the camera. 25–27s — Unnatural turn: The woman remains frozen inside her apartment. The distant figure slowly rotates its head toward the camera while its body remains completely motionless. The movement is subtly unnatural and unsettling, but no gore or extreme deformation. 27–28.5s — Darkness: Every light in the corridor suddenly switches off simultaneously. Complete darkness for a brief moment. Hold the silence. 28.5–30s — Replay-worthy ending: The lights suddenly return. The corridor is empty. The woman is no longer visible. The camera remains inside the apartment, staring toward the open doorway. After a brief pause, the door slowly closes by itself. CUT TO BLACK immediately. VISUAL STYLE Ultra-realistic Korean apartment complex at night, authentic modern residential architecture, narrow corridor, realistic fluorescent lighting, subtle reflections, natural skin texture, believable clothing and hair movement, realistic phone illumination, cinematic shadows, atmospheric darkness, restrained psychological horror, sophisticated body-horror influence without gore, realistic environmental physics, cinematic film grain, natural motion blur, high dynamic range, premium horror-film cinematography. CAMERA & COMPOSITION 16:9 widescreen cinematic composition. Use the wide frame intentionally: leave negative space in corridors so subtle silhouettes and background movement can be noticed by viewers. Combine wide establishing shots, controlled handheld tracking shots, medium shots and occasional close-ups. Keep camera movement tense but controlled and physically believable. Avoid excessive shaking, random zooms, unnecessary cuts, or disorienting camera movement. Maintain clear geography of the apartment and hallway throughout the entire video. CONTINUITY & QUALITY CONTROL Maintain