Stephen Clarkson

Armchair Theatre is a British television drama anthology series of single plays that ran on the ITV network from 1956 to 1974. It was originally produced by Associated British Corporation, and later by Thames Television from mid-1968.

Detective Inspector Campbell (Gordon Jackson) looks into the murder of a teacher at a girls school where there are a number of suspects, including her colleagues and the married man she had been seeing.

A French PR man and his girlfriend steal a lottery ticket from twin trapeze artists, prompting murder.