When it comes to shows at the Edinburgh Fringe, it would be stranger and harder to find a show that doesn’t feature audience interaction then one that does, but no other features quite as much as the work of Highly Suspect who construct and perform murder mysteries where the audience are the detective and have 70 minutes to catch the killer. In Abbasolute Murder, it’s filming day for the Continental Song Contest and you are in the viewing room. The Host Hugh Eurovision, along