"Theme from The Apartment" is a tune composed by Charles Williams.

The song was originally released in 1949 and entitled "Jealous Lover", and was originally featured in the 1949 film The Romantic Age.

In 1960, the song was performed by Ferrante & Teicher It reached No.

[1] It was featured on their 1960 album The World's Greatest Themes.

[2] The song was arranged and produced by Don Costa.