Derren, who professes that he loves writing and performing on stage more than anything else, promises Londoners an evening of mind-melting based around audience participation.

'More than that I wouldn't want to say', he says. 'I ask audiences to keep the contents of the show a secret so as not to spoil it for others, and I have to do the same. But I hope it's fun and freaky and a great night out'.

Svengali is written by Derren Brown and Iain Sharkey with Stephen Long and produced by Michael Vine, Andrew O'Connor & Corrie McGuire for Objective Talent Management.