Sorry, Wrong Number is a 1948 film noir starring Barbara Stanwyck. It tells the story of Leona Stevenson, who overhears a murder plot on the telephone. As she tries to piece together the mystery by making phone calls, she learns that her husband may be involved in the plot. When the murderer arrives at her home at the planned time of 11:15, Leona is killed. The film was based on the popular 1943 radio play of the same name and featured Stanwyck in a suspenseful performance.