Katharine Hepburn stars as Jane Hudson, an Ohio secretary on the verge of spinsterhood. Carefully saving her money, Jane takes an extended trip to Venice, half hoping to find the romance that has always eluded her. Luck of luck, she meets handsome Renato Di Rossi (Rossano Brazzi), who sweeps her off her feet.
Jane's flight on Cloud Nine comes to a flaming crash when she learns that Renato is married and the father of a large family. Picking herself up and dusting herself off, Jane is determined to keep her romance alive, and hang the consequences.
She ultimately does what's best for everyone, and heads back to Ohio, wistfully clutching to the memory of the happiest summer of life. Gorgeously color-photographed on location by Jack Hildyard, Summertime was an adaptation of (and vast improvement upon) Arthur Laurents' play The Time of the Cuckoo.