This Edgar Wallace play about gangster warfare in prohibition Chicago was first performed on stage at the Wyndham's Theatre in 1930, with Charles Laughton as gangster Tony Perelli. This 90-minute television version, produced by Royston Morley, featured Arthur Gomez (who had been Laughton's understudy on stage), Gillian Lind, Percy Parsons, Edmund Willard, Queenie Leonard, Alan Keith, Richard Newton, Harry Hutchinson, Thornton Bassett, Adrian Byrne, Alex McCrindle, and Peggy Stacy.

For the first time in British Television drama two studio cameras were taken outside the building, their cables trailing down two flights of stairs, to televise exterior scenes.

On The Spot was revived for broadcast on 30th May 1948, with Reginald Tate as Perelli and screen actress Christine Norden making her television debut as the gangster's girlfriend.