First I created two spotlights and let them shine forward from the camera view to simulate the effect of a flashlight, the front spotlight is shining in the distance to make the light more layered and realistic, after setting the camera as the parent of the two spotlights, so that the spotlights can move with the camera
Create a point light on the inside of the open door and set it to warm light, then add a point light on the right side of the middle of the corridor and set it to cold light, and add a noise modifier to it in the time editor to make it blink all the time, the contrast between warm and cold increases the spookiness of the scene, Then select the face of the chandelier bulb part to add a self-luminous material, and then create a spotlight to shine upward to simulate the effect of the lampshade, and select the exit sign to add self-luminous material to it.
Create a light panel behind the window and a spotlight tilted towards the water to simulate thunder, when the lightning flashes the water will have more reflections