Catherine Cookson's The Mallen Saga

The Mallen Secret (1x3)

Air date: Jun 10, 1979

Before the late Squire Thomas Mallen killed himself, he left a trail of illegitimate children all over the hills of 19th Century Northumberland. One of them, Miss Barbara, is deaf and has been kept from the truth by her governess. Now a beautiful and wilful young woman, she falls in love with her cousin, Michael, whose mother is also obsessed with keeping him ignorant of his own illegitimacy. Part 3 in the series.