sentences:  During an intense heat wave, he watches his neighbors, who keep their windows open to stay cool.He observes a flamboyant dancer he nicknames, "Miss Torso"; a single woman he calls "Miss Lonelyhearts"; a talented, single, composer-pianist; several married couples, one of them newlyweds; a middle-aged couple with a small dog that likes digging in the flower garden; a female amateur sculptor; and Lars Thorwald (Burr), a traveling jewelry salesman with a bedridden wife.Jeff's sophisticated, beautiful socialite girlfriend, Lisa Fremont (Grace Kelly), visits him regularly, as does the insurance company nurse, Stella (Thelma Ritter).