Split-screen video of a baby monitor matching the real nursery

15-second split-screen video, two equal vertical halves, one continuous take, no cuts. Both cameras show the same event at the same time, perfectly frame-synchronized. Scene: A house at night. A nursery upstairs; a kitchen downstairs. Left: Camera in the kitchen. A tired mother stands at the counter warming a bottle, a baby monitor screen beside her showing grainy black-and-white video of the nursery: crib, mobile, sleeping baby. Show only the kitchen and the monitor screen. The real nursery is never directly visible on the left. Right: Camera mounted high in the actual nursery, the exact same view the monitor shows, but in full color and clarity. Everything on the monitor screen in the left half must match this right half frame by frame: same crib, same baby, same movements, converted to grainy monochrome on the little screen. 0-5s: Right: the crib mobile begins turning slowly on its own; no one is in the room. Left: on the monitor screen, the same mobile turns; the mother doesn't notice, she's testing the bottle on her wrist. 5-10s: Right: the nursery door behind the crib drifts open a few centimeters. Left: same drift on the monitor; the mother glances at the screen, pauses, unsure, steps closer. 10-15s: Right: a cat walks in through the open door, jumps onto the crib rail, and the mobile stops. Left: the mother sees the shape on the grainy screen, tenses, then recognizes the cat, exhales, and smiles, bottle in hand. Final frame: both halves showing the cat curling up, monitor and reality identical. Every motion in the nursery must appear on the kitchen monitor at the same frame. No cuts, no lag between right half and monitor, no extra figures.