No one knows who the killer is, not even the cast! The hit improvised murder mystery returns for a fifth year. 'The slickest and quickest improv at the Fringe' ***** (TheWeeReview.com). Delve into a world of comedy and crime and put these improvisers through their paces. CSI creates a 100% brand-new whodunnit every show to solve an outlandish murder invented by the audience. Someone's kicked the bucket. But who, what and how? The choice is yours, the problem is theirs. 'A spectacular must-see' ***** (BunburyMagazine.weebly.com). 'Spontaneous mastery' **** (FringeBiscuit.co.uk).