D G Compton & Guy Compton 
Dead on Cue [EPUB ebook] 

A deadly role becomes murder in the theatre…When writer Ben Anderson goes to Downshead Repertory Theatre company to see the rehearsals for his first play, he is not prepared for what follows.Sitting in the audience, he witnesses a horrific murder: a prop gun has been swapped with the real thing with deadly consequences. And when a second killing occurs, and the local CID officer is suspicious of Ben’s part in the mysterious events, things go from bad to much, much worse…