While the plot of the highly female-centric “Adore” is plenty shocking – two lifelong female friends become lovers with one another’s teenaged sons – it’s not even the most shocking element of this unusual and fascinating tale. It is the faces of the film’s stars, Robin Wright and Naomi Watts. Their beautiful faces are also older looking. Women in their 40s are shown on screen looking like women in their 40s. While their actions are extremely surprising, their appearances are downright revolutionary.

The sons of two best friends become their lovers in “Adore,” on DVD and streaming now.

The sons of two best friends become their lovers in “Adore,” on DVD and streaming now.

But more on those actions first … “Adore” tells the story of two lifelong best friends, shown growing up on an idyllic, utterly fabulous, and most importantly, solitary beach in Australia. They each have a son the same age, and one of them (Wright) is married while Watts’ husband dies in a car accident. As adults, they live in magnificent neighboring beachfront houses and spend every day together, wearing tasteful but sexy bathing suits and sarongs, eating on sunny balconies and drinking white wine. They also both have great jobs. It’s total lifestyle porn.

Of course, two such attractive women could not help but produce extremely hunky sons, who are also best friends. Their lives are perfect and they require nothing but the four of them to be perfectly happy. The surviving husband keenly feels his extraneousness and attempts to move his family to Sydney, where he has gotten a better job. In his absence, during what is supposed to be a temporary break until his family joins him, things get frisky on the beach.

What makes this interesting and not merely scandalous in the all-around closeness of all four of the people involved: the mothers’ relationship is often questioned as being lesbian, and more than once the viewer wonders if that’s where things are headed. One also wonders if the sons are about to become lovers. In a way, they all are in love with each other, and the situation that shakes out is just the configuration that they pick. It’s a closed loop of intimacy. And yes, it’s pretty freaky.

So how far can these cougars in paradise take things? That’s another thing that makes the film interesting, beyond the appeal of tanned people surfing in lovely locales. We see their story through the various problems you might imagine such an arrangement could create. The film is based on a Doris Lessing novella entitled “Two Grandmothers,” so that should give you an idea of how far we witness their complicated story. “We’ve crossed a line” one mom says to the other in a vast understatement early on. As crazy as it may seem, it’s a pretty compelling journey to watch.