one4review | On 23, Aug 2026

Zinnie Harris’s Supposing: takes the ancient Greek myth of Cassandra and drops it into a very recognisable modern world, creating an intriguing mixture of domestic comedy, psychological drama and something considerably more unsettling.
We first meet Sally in a compelling monologue as she tries to make sense of what has happened to her. After falling down a hole in the street, she believes she has been cursed and is now able to see things that have yet to happen. Her husband, Rich, is understandably sceptical, initially treating her revelations as something of a joke before realising that she is entirely serious.
Sally also has what she describes as a Greek ‘chorus’ in her head, adding an unusual theatrical dimension to an otherwise recognisably domestic situation. As she begins to investigate Greek mythology, she becomes convinced that she may be a modern-day Cassandra, or perhaps even descended from her. Like Cassandra, she can foresee terrible events but faces the equally terrible prospect of nobody believing her.
Nicole Cooper gives a particularly strong performance, carrying much of the production and holding the audience’s attention throughout. Richard Conlon provides an effective counterbalance as Rich, whose mixture of scepticism, concern and occasional exasperation feels entirely believable.
Sally’s visions gradually move beyond her immediate circle. She knows, for example, that a neighbour has cancer that hasn’t yet been diagnosed and will only be discovered when it is too late.
Harris uses the Greek myth to explore some very contemporary anxieties, from the difficulties of personal relationships to wider fears about racism, political extremism and social division. Sally’s visions become increasingly disturbing as she sees suffering that she knows is coming but seems powerless to prevent. At the same time, the humour running through the darker material stops the play becoming too heavy, creating an intriguing balance between the personal story and the wider issues it raises.
Well performed, often funny and consistently intriguing, Supposing: holds the attention throughout. A thought-provoking piece of contemporary theatre and I would recommend catching this, if you can get a ticket.

****
Reviewed by Howard
Traverse 2 at Traverse Theatre
Various Times
Until 30th August (not 24th)