In Nathan Ellis’ Instructions, each day a new and unrehearsed performer steps onto the stage, prepared to follow a series of, well, instructions projected onto a screen that’s been set up on the stage. A narrative gradually takes shape, revealing itself piece by piece, taking both actor and audience on a journey. Supported by masterful use of screens and lighting, the show elicits the best reactions when an actor struggles with those instructions, rebelling and sharing a quick nudge and wink with the audience at the absurdity of it all.

Actor and audience commiserate while the director conspires against both. However, Instructions loses its way in the final act when it tries to philosophise, attempting to force a narrative upon an audience that has, until now, been creating their own along with the actor. Despite its flaws, Instructions is wonderfully inventive, pushing boundaries in the spirit of the Fringe and challenging audiences to see theatre in new ways.

Instructions, Summerhall, until 26 August, 1.10pm; main picture: Alex Brenner.