Through the Keyhole

The brief

Push in on an old brass keyhole, pass through the aperture, and emerge into a room where the season has changed — summer light on one side, snow drifting through the same room on the other. One move, no cut.

Why it's hard

The transition through the aperture is the crux: it has to feel like a physical passage rather than a wipe. Then the two seasons must share the same architecture and camera path while disagreeing about light, colour temperature and air.

Every challenge is scored against the same vocabulary, so you can compare them. Lit cells are what this one tests.

Success criteria

• The passage through the keyhole reads as travel through a hole, not a transition effect.
• Room geometry is identical on both sides; only the season differs.
• Light temperature, shadow direction and airborne particles all change together.

Starter prompt

Built with the CEMI MediaMax system for Google Veo 3.1. Prompts stay in English — that is the language these models take instructions in. Treat it as a starting point and start varying it.

One continuous move, no cut. The camera starts in a cold hallway, tight on the brass escutcheon of an old mortice lock — verdigris in the engraving, screw heads worn to a slot and a half, dust drawn through the hole on a draught. It pushes into and through the keyhole; the brass edges pass the lens as a black vignette that opens like an iris. Inside is the same room in another season: the hallway was blue winter dusk with frost feathering the outer glass, the room is high summer — a hot rectangle of afternoon sun laid across bare floorboards, a fly turning over on the sill, curtains lifting on a warm draught. The change happens in the throat of the lock, not by dissolve. Camera: 8mm probe lens, a human hesitation before it commits, then a steady push. Register of Robert Eggers' interior severity with DP Darius Khondji's amber-and-shadow.

Style reference: Robert Eggers (dir.) interior severity with Darius Khondji (DP) amber-and-shadow