Ultra-realistic 4K cinematic horror scene in a dark rainforest at dusk. Moody blue-black color grading, dim lantern lighting, foggy atmosphere, realistic water physics, anamorphic lens look, natural skin texture, handheld cinematic camera movement, grounded realism, suspenseful pacing, terrifying scale, Dolby-style sound design, no bright colors. **Scene 1 (0–4s):** Wide drone shot of a small wooden jungle hut built above a flowing river stream deep inside a dense rainforest. A young couple sits peacefully on the front terrace deck with legs hanging near the water, quietly enjoying the view. Dim lantern light glows beside them. Water gently flows under the hut. Camera slowly pushes forward with subtle handheld motion. Calm but unsettling atmosphere. Wet wood reflections, fog over water, dark green jungle tones, cinematic depth of field. Soft ambient music, insects, distant jungle sounds. **Scene 2 (4–7s):** Cut to low angle near the river surface. Water begins vibrating unnaturally. Ripples spread rapidly beneath the terrace. Lantern light flickers softly. Camera shake increases slightly. A gigantic dark underwater silhouette moves beneath the hut, partially visible through murky water. The couple notices movement and becomes nervous. Deep underwater rumble, wood creaking, suspenseful bass tones. **Scene 3 (7–11s):** Suddenly a gigantic horrifying mammal-like water beast explodes from the river beside the terrace in terrifying ultra-realistic detail. Massive jaws open wide with huge sharp teeth. Violent slow-motion water splash everywhere. Wet scarred skin with realistic reflections and dark gray-black texture. Creature partially climbs onto the wooden deck. Couple screams and backs away in panic. Camera rapidly pulls backward with intense handheld shaking like a real movie cameraman reacting naturally. Dramatic lantern and moonlight reflections, cinematic destruction, terrifying scale. **Scene 4 (11–15s):** The giant creature aggressively crawls toward the couple across the wooden terrace while roaring. Wood cracks beneath its massive weight. Couple runs into the dark jungle behind the hut. Camera follows behind with frantic handheld movement through fog and darkness. Final shot: creature stops near river edge and stares directly into camera with glowing eye reflections and heavy breathing. Instant hard cut to black. Loud roar echoes, music abruptly stops, distant flowing water continues in darkness. Negative Prompt cartoon, fantasy colors, unrealistic CGI, oversaturated lighting, blurry textures, low realism, anime style, fake water physics, goofy expressions, distorted anatomy, bright daylight, cheerful mood, low detail, extra limbs.