London, the early 1950s. Born deaf, Mandy is mute for most of her childhood. As she reaches school age her family itself is in danger of breaking up. Christine, Mandy's mother, has heard of a residential school for the oral education of the deaf.

Phyllis Calvertas Christine Garland
Jack Hawkinsas Dick Searle
Terence Morganas Harry Garland
Godfrey Tearleas Mr Garland senior
Mandy Milleras Mandy Garland
Marjorie Fieldingas Mrs Garland senior
Nancy Priceas Jane Ellis
Edward Chapmanas Ackland
Patricia Plunkettas Miss Crocker
Eleanor Summerfieldas Lily Tabor
Douglas Slocombe