How can a naked space seem so full? Feelings furnish the stage in the resplendently spare new production of Harold Pinter’s “Betrayal,” which opened on Thursday night at the Bernard Jacobs Theater, and they shimmer, bend and change color like light streaming through a prism.

Directed by Jamie Lloyd — and acted with surgical precision by Tom Hiddleston, Zawe Ashton and Charlie Cox — this stripped-down revival of Pinter’s 1978 tale of a sexual triangle places its central characters under microscopic scrutiny, with no place to hide. Especially not from one another, as everybody is on everybody else’s mind, all the time. They are also all almost always fully visible to the audience.

This British version is the most merciless and empathic interpretation of this much performed work I’ve seen, and it keeps returning to my thoughts in piercing shards, like the remnants of a too-revealing dream. I had heard good things about this “Betrayal” when it debuted in London earlier this year, but I didn’t expect it to be one of those rare shows I seem destined to think about forever.

“Betrayal” was dismissed as lightweight by Pinter standards when it opened at the National Theater in London four decades ago, and hearing it described baldly, you can sort of understand why. The high concept pitch could be: “Love among the literati in London leads to disaster, when a publisher discovers his wife is having an affair with his best friend!”