Measuring out the wartime days in a small town on the Thames, Miss Roach is not unattractive but no longer quite young. The Rosamund Tea Rooms boarding house, where she lives with half a dozen others, is as grey and lonely as its residents. For Miss Roach, a shaft of not altogether welcome light is suddenly beamed upon her, with the appearance of a charismatic and emotional American Lieutenant. Life is almost bearable until Vicki Kugelmann, a seeming friend, moves into the adjacent room. That's when Miss Roach's troubles really begin.