Standing enthusiastically by as a naked man writhes in agony might not be everyone’s cup of tea. But this is the sort of bizarre spectacle that devotees of immersive theatre group Punchdrunk sign up for. Like previous efforts including 2007’s The Masque of the Red Death, Punchdrunk’s latest venture, The Drowned Man: A Hollywood Fable, requires theatregoers to don masks and chase actors down disorienting, low-lit passageways, happening haphazardly upon non-sequential ‘scenes’.