Convinced that David Bowie is a prophet, Ziggy and Gary are eagerly awaiting the Rapture in their grotty flat when their bubble is pierced by the appearance of a drugged-up clubber. As a meditation on religious extremism, it has little new to say but clever staging and strong acting carry along this dark tale to its terrifying end.

Underbelly, 0844 545 8252, until 29 Aug, 3.30pm, £9.50–£10.50 (£8–£9).