This article provides analysis of the short-lived London Grand Guignol (1920–2). During its brief existence, this institution became infamous – its presentation of acts of murder and violation provoked strong reactions from its audience, the press and the Lord Chamberlain's office. It has not attracted sustained scholarly analysis since, however, and this article draws upon archival material from the Lord Chamberlain's Plays and Correspondence Files, London's Theatre Museum and the Mander and Mitchenson collection in order to assess its audience's scopophilic – and often very physical – responses, as well as the ocularcentric preoccupations of the genre. The article illuminates censorious, critical and academic definitions of value, drawing upon Foucault's essay ‘A Preface to Transgression’ and the work of Georges Bataille.