Constellations: On Love, Loss, and the Right to Choose
Photo: Daniel Rutland Manners
My wife is an occupational therapist working in adult neurology, with a particular interest in palliation. She comes home carrying other people's diagnoses, and over the years I have learned to read the weight of certain silences, especially the ones that mean the news was very bad today. I mention this because sitting beside her in the dark at Theatre on the Square, watching the final scenes of Constellations, I reached for her hand. We were both crying. It is not a small thing for a seventy-five minute play to do that.
Nick Payne's Constellations is, in the most literal sense, a play about quantum physics. Its central conceit draws on the Many Worlds Interpretation: the idea that every decision we make causes reality to branch into parallel versions of itself, each one playing out simultaneously in its own universe. Somewhere out there, every version of your life is being lived. Every road not taken has someone walking down it.
But Payne is not really interested in physics. He is interested in love, and in mortality, and in what it means to share your finite existence with another person. The science is simply the structure he uses to hold those questions up to the light.
The play follows Marianne, a physicist, and Roland, a beekeeper, from the moment they meet at a barbeque (<cough> braai <cough>). What happens next depends on which universe you're watching. They hit it off, or they don't. They go home together, or they go their separate ways. Their relationship forms, fractures, reforms, is tested and ultimately, in some versions, is cut heartbreakingly short. The play cycles through these possibilities as a series of tightly written vignettes, each one a variation on the same handful of scenes: the barbeque, the first date, the fight, the reconciliation, the terrible news. The same words, spoken differently. The same moment, with a different ending.
The Architecture of Repetition
What is remarkable about Payne's writing is how much is achieved with how little. Each vignette is stripped down to its barest essentials: sometimes just a line or two, a shift in tone, a different choice of word, and yet each one lands with precision. The script demands that every syllable do real work, because when you are repeating a scene for the third or fourth time, with only subtle alterations, the audience is attuned to every change. This is writing that trusts its audience, and that trust is repaid. There is no hand-holding, no explanatory monologue in which someone leans forward and tells you what it all means. The structure is the meaning: you piece it together yourself, and that act of piecing together is itself part of the experience.
Payne reportedly consulted physicists at the University of Sussex during the writing process, including researchers who study quantum effects in bee navigation, which provides a quiet, lovely resonance with Roland's profession. But the science never feels like a lecture. It wears lightly. Marianne explains the multiverse to Roland in a scene that is at once playful and tender, and from that moment you have all the framework you need. The rest is just life, played out in shards.
Photo: David Rutland Manners
Two Performers, One Universe at a Time
The production lives or dies on the quality of its two performers. There is no set to hide behind, no ensemble to carry the weight, and Mark Elderkin and Mwenya Kabwe are simply exceptional. What they achieve here is a particular kind of discipline: the discipline of restraint. Lesser actors, faced with repeated scenes, might reach for variety through surface-level differentiation: a different posture, a changed rhythm. Elderkin and Kabwe go deeper. Each iteration feels genuinely distinct from the inside, because they appear to be living each version fully, not performing it. The shifts are internal before they are external.
Elderkin's Roland is warm and slightly bumbling in the best possible way. He is the kind of man you immediately like, and it matters that you do, because the play's final movement depends on it. Kabwe's Marianne is luminous and precise, controlled in a way that makes her rare moments of openness quietly devastating. Their chemistry is the engine of the whole piece. The play asks you to believe, across dozens of variations, that these two people are drawn to each other, and you believe it every time.
The later scenes involving Marianne's brain tumour are handled with particular care. There is a specific cruelty in watching a scientist (someone who understands the mechanics of the brain better than most) lose command of her own language, reaching for words that no longer come. The actors navigate this terrain with tremendous sensitivity. There is no sentimentality, no overplaying of grief. The understatement is what breaks you.
Photo: David Rutland Manners
Worth Thinking About
What stayed with me after the drive home was not any particular scene, though there were several I will not forget. It was the feeling the play leaves you with: a heightened awareness of the present moment. Of the conversation you are having right now, in this version of reality. Of how easily things can go differently. Of what it means to hold on to someone, knowing that in some universe you won't.
Working in neurology, my wife sees what it looks like when people run out of versions. When there are no more parallel possibilities to hope for, only the one that's left. Constellations understands that too. It smuggles that knowledge into the room with great gentleness, and the result is that the play's final scenes don't feel like fiction. They feel like a reminder.
The play also has something quietly courageous to say about choice at the end of life, about who that choice ultimately belongs to. It is one of the most contested and consequential conversations our society consistently fails to have properly, too often because the discomfort of those gathered around the bed takes precedence over the wishes of the person in it. Payne does not preach. He simply asks, through Marianne, what it means to exercise agency over the one life you can be certain of: this one, in this universe, when that life is running out. It is a question worth sitting with long after the lights come up.
We don't tend to think about our lives in terms of parallel possibilities. But for seventy-five minutes, Constellations makes you do exactly that. And when it's done, you step back out into the ordinary world slightly altered. That, I think, is what theatre is for.
Constellations runs at Theatre on the Square until Saturday, 11 July 2026.