Photorealistic cinematic 1930s mystery scene, stylish woman standing on an old stone bridge near an ancient European castle at night, late twenties or early thirties, tailored trench coat or long 1930s coat, gloves, softly waved hair or small period hat, holding a small envelope or folded letter, glancing back over her shoulder, secret meeting atmosphere, vintage 1930s car parked discreetly near the far end of the bridge, castle looming in the misty background, moonlight and dim window lights, wet stones, soft lamplight, subtle fog, elegant European noir spy thriller mood, realistic anatomy, realistic hands, period-correct wardrobe, moody cinematic composition, high detail