It’s not easy to write a review about a show that doesn’t register on any online search engine, but the opportunity can be both oddly restricting liberating. All that one can find is an abstract synopsis, which states: “Flush! is an interactive, site-specific performance set in the women’s toilets, literally.”

The description continues vaguely enough, telling us that through this the audience will be able to know what makes a better future, while better understanding water wastage in Britain. Confused, you might decide to play it safe with one of Shakespeare’s offerings. Hopefully, however, the following review will go some way in giving Flush! the explanation it deserves.

Presenting the play is fledging performance duo Cape Theatre: a contemporary theatre company based in east London made up of Reena Kalsi and Cassie Leon. The two founded the company four years ago and both star in Flush! as game show hostesses. Their original work celebrates shared experiences among diverse audiences, by inducing them to use their vibrant personas and DIY aesthetics. Flush! is an experimental show that engages with every member of its audience. Beginning as a simplistic yet fun and educational show, it has been refined with more creative details during the past year.

The play begins with the audience descending a spiral staircase, and they are soon made to feel ill-at-ease as they spy a grim red light shining dimly above them. Still wondering where the seats are, a warm hand stretches towards you, offering a friendly handshake: “Hi, I’m Reena. Nice to meet you.”

Before the sound of ocean waves breaking, hostesses Kalsi and Leon have already began their rhyming prologue. Those watching are separated into two teams to compete against one another. “How much percentage of water is there in a person’s blood?” “How much water does a 15-minute shower use?” Hard-hitting questions like these take the audience by surprise; but as the play develops, so does its tone.

During the production spectators are asked to complete a task inside an actual toilet; the claustrophobic setting and the awareness of being on camera creates almost the same degree of panic that Jigsaw’s victims experience when they find themselves locked inside a room. The audience are also instructed to close their eyes and imagine themselves being a wave, or to define the word “responsibility”.

The show is brought to an end by a mermaid’s yammer. Kate O’Rourke plays the mythical sea creature with her arms and face smeared with grease and facial cream – done to create the effect of her sweating due to pain. Her jade green fish tail, made of curtain wrapped in cling film, is laid lifelessly just one inch away from the audience. Her monologue is more of a long poem than an exact story, and one may grow tired of its lengthiness after becoming fatigued in the eerie atmosphere.

Flush! doesn’t share the liveliness of Brighton festival’s other shows, but the performers’ enthusiasm make up for this nonetheless. Given more time and more exposure, this show could gain more plaudits but like many other start-up young performers, they have put in much more effort than they can possibly get back in revenue.  As it stands, and as they stood, the sudden feeling of loss on the thespians’ faces lasted beyond the final scene.

Flush plays at The Old Market, Brighton Fringe until 1 June. For more information and tickets, see the Brighton Fringe website.