This book presents a unique case study of Secret Cinema - the leading provider of large-scale immersive experiences in the UK. It uses Secret Cinema as a lens through which to view the wider experiential economy. Pivoting on late-2019, a point at which the UK immersive sector had grown significantly, the book provides a comprehensive and encyclopedic history of the organisation and its productions. It defines and examines the Secret Cinema format, critically interrogates the work and operations of Secret Cinema as an organisation and analyses the many layers of audience experience. Drawing on in-depth interviews with Secret Cinema practitioners and sector professionals, the book captures an organisation and a sector in transition from marginal and subcultural roots to commercial form, now with recognisable professional roles and practices, which has contributed to the establishment of an immersive experience industry of national importance and global reach. Written in an accessible style, with rich case study materials and illustrative examples, Secret Cinema and the immersive experience industry will appeal to scholars, students, film fans, immersive experience professionals and their audiences.