This is not a review as such, as I have promised, along with the rest of the audience, not to divulge any spoilers about Ghost Stories, which had its press night at the Wolverhampton Grand Theatre last night. What I will say it is that it is a theatrical event that really needs to be seen, and that yes, you will scream and will be sleeping with the light on, but you will also laugh as well. Ghost Stories is that rare phenomenon, a play that has managed to keep its plot and twists secret (I can only think of The Mousetrap that also tries to do the same, and…