 Director Smith visits five unusual homes and talks to the people who built or adapted them. His subjects include an alligator wrangler who lives on a houseboat in a Louisiana bayou; an American actress who made her fortune on Japanese TV and then built a treehouse getaway in Hawaii; an inventor who automated his entire home; a family who converted an abandoned missile silo into an underground abode; and a pair of cat-lovers who renovated their house with dozens of feline-friendly features.