By Steve Dinneen There are surprisingly few genre plays on the West End stage – where are all the science fiction and fantasy and horror and gangster stories that dominate other areas of pop culture? And where is all the true crime, a format you can barely escape from on streaming and podcast platforms? The Old Vic brings one of the most famous examples of theatrical true (ish) crime to its stage in this semi-fictionalised take on the real life murder of magazine editor Albert Snyder by his wife Ruth in 1927. It was the OJ Simpson trial of its day, creating a media frenzy, not least because so…