Shelagh Stephenson’s Enlightenment is an unsettling play – one which works on the fears of our imaginations, and the terror of our own smallness in an increasingly global world.

It is this sense of individual insignificance that gives Zoë Waterman’s production such a powerful and contemporary feel – this could be anyone’s house, anyone’s family. In a world where solutions are always just a phone call or the touch of a button away, the sense of these characters’ helplessness pervades the play like a bad dream.

Cate Hamer is a strong central figure as Lia, the mother desperately trying to hold onto herself in her search for answers about her missing son. Through her powerful portrayal of a woman on the edge, we see the struggle for control that plagues all of the play’s characters, from the belligerent Gordon (Peter MacQueen) to Joanna, the ambitious media woman, played by Charlotte Mulliner. Mulliner perhaps best represents the precariously balanced nature of control; she is the character who has most of it at the start of the play, and the only one to bow out as soon as she feels it slipping. Her smart heels and slick performance throw Hamer’s portrayal of a frayed and despairing Lia into sharp relief.

Meanwhile, Patrick Bridgman excels in the role of Lia’s partner, Nick, whose cynical retorts provide much of the play’s humour – a humour that teeters on the edge of hopelessness; Bridgman perfectly balances the two, a master at straddling the line between the emotions he exposes and those he withholds.

However, it is Richard Keightley’s Adam who makes the play a truly disturbing piece. His entrance at the end of the first half is a wave of uncertainty in an already turbulent drama – a wave which becomes a tsunami by the end of the play, as his Machiavellian power games seek to twist the characters against one another with a ferocity that would make Pinter proud. Keightley creates a character with so many layers of manipulation and vulnerability that it becomes impossible to know when (or even if) he ever lays bare this complex character’s troubled core.

Even in such an exceptionally strong season comprising outstanding productions like The 39 Steps and Suddenly Last Summer, Theatre by the Lake’s Enlightenment shines out: a gripping piece of contemporary theatre that seeks to unhinge our sense of control and safety in our own fragile lives.

~ Enlightenment runs at Theatre by the Lake, Keswick, until 7th November 2015 ~