Jeff telephones him to lure him away so that Stella and Lisa can investigate. He believes Thorwald buried something in the flower bed and killed the dog because it was digging there. When Thorwald leaves, Lisa and Stella dig up the flowers, but find nothing. Much to Jeff's amazement and admiration, Lisa climbs up the fire escape to Thorwald's apartment and clambers in through an open window. Jeff and Stella get distracted when they see Miss Lonelyhearts take out some pills and write a note, realizing she is going to attempt suicide. They call the police but before they can report it, Miss Lonelyhearts stops, opening the window to listen to the pianist's music. Thorwald returns and confronts Lisa, and Jeff realizes that Thorwald is going to kill her. He calls the police and reports an assault in progress. The police arrive and arrest Lisa when Thorwald indicates that she broke in to his apartment. Jeff sees Lisa coyly pointing to her finger with Mrs. Thorwald's wedding ring on it. Thorwald sees this also and, realizing that she is signaling someone, spots Jeff across the courtyard. Jeff phones Doyle and leaves an urgent message while Stella goes to bail Lisa out of jail. When his phone rings, Jeff assumes it is Doyle, and blurts out that the suspect has left. When no one answers, he realizes that it was Thorwald calling. Thorwald enters Jeff's dark apartment and Jeff sets off a series of camera flashbulbs to temporarily blind him. Thorwald pushes Jeff out the window and Jeff, hanging on, yells for help. Police enter the apartment, Jeff falls, and officers on the ground break his fall. Thorwald confesses to the police that he murdered his wife. A few days later, normalcy returns to the neighborhood. The couple whose dog was killed have a new puppy, the newlyweds are having their first argument, Miss Torso's boyfriend comes back from the army, Miss Lonelyhearts starts seeing the pianist, and Thorwald's apartment is being refurbished. Jeff rests in his wheelchair, now with casts on both legs. Beside him, Lisa reads a book titled "Beyond the High Himalayas." After seeing that Jeff is sleeping, Lisa happily opens a fashion magazine. Cast James Stewart as L. B. "Jeff" Jefferies Grace Kelly as Lisa Carol Fremont Wendell Corey as NYPD Det. Lt. Thomas "Tom" J. Doyle Thelma Ritter as Stella Raymond Burr as Lars Thorwald Judith