Masked underworld creatures lead you into a crumbling, labyrinthine corner of C soco, bidding you ‘follow the smell’. The four performers take turns at storytelling and acting – a couple of the cast are less convincing, but Lord Justice Frollo is brilliantly menacing, startling the audience with asides whispered in their ears and making them fully a part of this triumph of atmosphere.

C soco, 0845 260 1234, alternate days until 30 Aug, 11pm, £8.50–£10.50 (£7.50–£9.50).