Climax!

The original story was titled "Murder on the Telephone." Lucille Fletcher published a novelization of her radio play and screenplay in 1948, co-authored by Allan Ullman.

The show was so popular that it was re-broadcast every year for ten years on Suspense radio, and in 1947, Hal Wallis commissioned author Lucille Fletcher to expand her radio play into a full-length screenplay.

On the first original East coast broadcast of Sorry, Wrong Number on May 25, 1943 an actor missed his cue at one of the most important moments during the phone call to the police department where he was to say, ""Police department, Precinct 43. Sergeant Martin speaking", and say, "Sorry. Musta been a wrong number", and put the phone down. This caused even more suspense for the audience as they listened, the problem was corrected though for the West coast transmission.

Sorry, Wrong Number was made into a television play on a local New York station starring Mildred Natwick on January 30, 1946.

Lucille Fletcher who wrote and adapted Sorry, Wrong Number for Climax! was married to composer Bernard Herrmann who also wrote the music for this program.

Sorry, Wrong Number also aired on January 9, 1950, with a Lux Radio Theater broadcast with Barbara Stanwyck and Burt Lancaster recreating their big screen roles.