It is 10 years since Frantic Assembly burst rudely, sweatily and noisily into British theatre and gave it a good shaking. It's a mark of the impact that this youthful company has had that nobody now raises an eyebrow at productions where text and movement, soundtrack and narrative are all equals and are mixed in one fluid theatrical experience.
They are celebrating their 10th birthday with a return to the 1999 breakthrough hit Hymns about four young men - childhood friends - at the funeral of Jimi, the fifth member of their group.
The passing of time may mean that it now looks less theatrically innovative, but it still packs an almighty emotional punch, its impact heightened by the fact that we are all that much closer to death. We hang on by our fingertips, just as this quartet claw at ladders that reach into the heavens, or sit with casual, terrifying insouciance perched in mid air.
The show has much to say about the emotional constipation of men, the defensive joke, laddishness as an avoidance of maturity.
It has even more to say about friendship and grief: the tricky territories that need to be negotiated, the resentments; the sudden realisation that you have nothing in common with these people except a shared past. It is a show about the grief of growing up and growing away, and so remains pertinent whether you are 16 or 60.
Thursday night's performance had some sound problems, but nothing could marr the eloquence of this theatrical language where words, image, sound and movement tumble together, separate and come together again so you are never sure whether it was what you heard or what you saw that has made your heart feel quite so bruised.
· Until May 7. Box office: 08700 500511.
