Jeffery (James Stewart) is a photojournalist. He likes adventure and travels around to shoot. An accident injured his foot, and now he must rest at home to recuperate. His daily life is managed by a nurse and a fashionable and beautiful girlfriend (Grace Kelly). It was a hot summer day. In order to cool and breathe, the windows of every family were opened wide. It was Jeffery's best way to send boring advice to observe the daily life of various people in the opposite building. One family is a businessman and his wife. When his wife was ill in bed, they often quarreled. However, abnormal events occurred one after another. Jeffery noticed that the merchant had gone out three times in one night and tidied up a pile of saws and knives the next morning. The neighbor's dog also dug and dug the flower bed downstairs, and was soon cruelly twisted off its neck. The merchant's wife has also been missing for several days. The incident became more and more bizarre, which made Jeffery suspicious of the businessman. But his injured leg was unable to move, so his girlfriend and friends joined the exciting plan to solve the case.

Jeffery (James Stewart) is a photojournalist. He likes adventure and travels around to shoot. An accident injured his foot, and now he must rest at home to recuperate. His daily life is managed by a nurse and a fashionable and beautiful girlfriend (Grace Kelly). It was a hot summer day. In order to cool and breathe, the windows of every family were opened wide. It was Jeffery's best way to send boring advice to observe the daily life of various people in the opposite building. One family is a businessman and his wife. When his wife was ill in bed, they often quarreled. However, abnormal events occurred one after another. Jeffery noticed that the merchant had gone out three times in one night and tidied up a pile of saws and knives the next morning. The neighbor's dog also dug and dug the flower bed downstairs, and was soon cruelly twisted off its neck. The merchant's wife has also been missing for several days. The incident became more and more bizarre, which made Jeffery suspicious of the businessman. But his injured leg was unable to move, so his girlfriend and friends joined the exciting plan to solve the case.