Afloat

Dark waters are rising. Who will stay afloat?

Architect Vance Nolan has crafted a marvel—shining apartments floating in the peaceful cove of a winding river. The project is partially occupied and about to make investors rich when a sinkhole gives way.

Torrential rains quickly flood the cove, leaving a handful of builders, investors, and residents cut off from the rest of the world.

The motley group i...