Henry is young, privileged and in a mess. His therapist puts him under, and soon Henry is in the deep waters of the unconscious. It's no surprise that he's not waving but drowning, because Henry's family are a nightmare: a hectoring, foul-mouthed father who seems to hail from the 1950s and thinks that military service is what young men need; a smother mummy who won't let her son grow up; a smug elder brother who spares his sibling nothing.
This family are all at sea - both literally and metaphorically - and the ship's radio keeps spewing out the voices of those caught up in a boating disaster as well as a surreal shipping forecast: "Laughter, moderate or good. Visibility dying out. Mood swings, north four or five, becoming variable seven or eight." This is 21-year-old Moses Raine's first play, and his youth shows. This is both a good and a bad thing. It is all thin skin, bleeding wounds and self-obsession. It is fresh as new-mown hay, and, like Catcher in the Rye, it captures the drift of teenage years when you are no longer a child but not yet an adult and feel dangerously unanchored in uncharted waters.
There are times when it feels like some kind of therapy. But mostly what it feels like is a precocious fragment of a fully fledged drama that the undoubtedly talented Raine hasn't yet got around to writing. But what there is is intriguing and highly promising, and director Maria Aberg wraps it all up adroitly.
· Until June 3. Box office: 0870 429 6883.
