Vibrant high-quality cinematic 3D cartoon animation, dark family-friendly thriller atmosphere. Heavy rain at midnight surrounds an old mysterious hotel, with fog drifting around the entrance and flickering exterior lights casting dramatic shadows. The camera slowly pushes toward an upper-floor window labeled ROOM 13. Arav, a 20-year-old Indian young man with a slim build, medium skin tone, short black hair, dark black hoodie, blue jeans, black sneakers, and a small black backpack, enters the hotel and approaches the elderly manager at reception. The manager silently studies Arav, then slowly hands him an old metal key marked "13." Cut to a tense close-up of the manager's serious face as he leans toward Arav and quietly warns in Hindi: "रात 2 बजे अगर दरवाजे पर दस्तक हो... दरवाजा मत खोलना।" Arav looks confused and slightly nervous. Smooth cinematic camera movement, expressive facial reactions, realistic cartoon lighting, moody blue-gray rainy palette, suspenseful music and subtle cinematic sound effects, natural Hindi dialogue with matching Hindi subtitles, no gore or blood. Vertical 9:16 composition.