Two evacuee children living in the United States receive a letter from their mother, Mrs Taylor, telling them of her life in Blitz-era London. Glimpses of the events of Mrs Taylor's typical day, including ration shopping and fire warden training, belie the letter's innocuous statements.
| Actor | Role |
|---|---|
 Celia JohnsonMrs Taylor | Mrs Taylor |
 Kathleen HarrisonEthel | Ethel |
 Joyce GrenfellMrs Rogers | Mrs Rogers |
 Edie MartinBespectacled Shopper | Bespectacled Shopper |
 Athene SeylerMrs Ashford | Mrs Ashford |