Switchable shower glass
A bathroom window beside a bath switching from clear to frosted.
What is in this film
One coastal property, filmed room by room, with palms and water in most of the windows.
The bathrooms carry the argument. A marble room with a freestanding bath has its shower enclosure clear and the sea beyond it; a corner of the same marble stands fully white. In another bathroom a panel divided into squares is switched private between two showers, under an arched window, and a closer shot holds on it beside the brass fittings. That is the state a bathroom panel rests in: frosted with no power, so the room stays private during a power cut and private if nobody touches the switch.
Overhead there is a round rooflight in switchable glass, switched, sitting in the ceiling as a disc of pale green.
Not everything here is frosting. Past a vanity, a run of DLC panels stands in its dark state, with a bright living space and the water visible beyond them. DLC tints rather than frosts, which is why that glass reads as deep blue and not as white.
The wall controls are in shot more than once, which is the whole interface: a switch on the wall, and nothing hanging in front of the glass.