The Room Upstairs centres on the experiences of a young couple struggling to conceive and the psychological impact this has on their relationship.

Clem (Lois Mackie) is on a quest to break the glass ceiling in her job while the career of Toby (Todd James) seems to be irrelevant.

James plays the kind, doting husband with playful humour. He grabs the audience's sympathy immediately and hangs on to it throughout the play, but Mackie's performance is the stand-out as the increasingly unstable Clem.

She navigates the journey from the quick, confident professional to careworn obsessive with incredible maturity.

Hannah Drake's direction is slick with seamless scene changes.

In a play of two halves, the seemingly domestic drama descends into a darker, surrealist world with highly stylised language. Although the couple are a good match in terms of their chemistry and comic timing, the shift in style is more easily carried by Mackie who is captivating in her downward spiral.

Ben Callon's The Room Upstairs, which runs until Saturday, October 22 before transferring to The Wardrobe Theatre, Bristol, is disturbing yet compelling and acknowledges the current social climate in which privacy is a luxury.

The short play Tribute Act, by Miranda Walker, which precedes the main play is a work-place sketch comedy depicting a Skype meeting between colleagues.

The sharp-tongued humour pairs wonderfully with energetic performances directed Jenny Wicks.