'Half Light is set in the New South Wales timber country, where logging townships have sprung up among forests of giant trees. As night falls, a great loneliness descends upon these centres, in the half-light.
'In one such town Frank Vickers is manager of a timber company. He is happily married, with his wife Nora and son Barry. Then into his life comes Joanna Fairweather, to whom he was engaged 12 years earlier.
'She is a strange woman, intensely lonely and seemingly grateful for the friendship given her by Frank and Nora. But gradually she begins to exert an insidious influence on the household—undermining the atmosphere of happy domesticity—until it becomes apparent that she is a bitter, fanatical woman, determined to take revenge for the happiness she feels she has missed in her life.
'One person, however, a tough woods man named Ted Michael, realises her true character. As Joanna’s vicious cunning increases, the action mounts to a tensely dramatic climax.'
Source: 'Commercial Radio Plays of the Week', ABC Weekly, 18 March 1950, p.27.