A radio play at the BBC is being broadcast, one of the actors is "murdered" in the play and puts on a terrific performance, you'd almost think he was being murdered for real... oh he is!
The victim has a number of enemies including some of his fellow actors including Dryden (Austin Trevor) who suspiciously left the studio during the performance. And who exactly was the foolish toff (Peter Haddon) wandering Broadcasting House?
The police investigation by the Inspector (Ian Hunter) proceeds well including a rather curious watch listening scene. The acting is at times rather melodramatic (and everyone is frightfully posh - actors in broadcasts back in those days performed in top hats and evening gowns) but rather suits such a setting. A lovely film with a good cast including Henry Kendall and Jack Hawkins. It also includes a couple of songs by popular singers of the day (Elizabeth Welch and Eve Becke) and the mystery of why a tap dance routine is broadcast on the radio.