Tender is the Night by F Scott Fitzgerald

It is the French Riviera in the 1920s. Nicole and Dick Diver are a wealthy, elegant, magnetic couple. A coterie of admirers are drawn to them, none more so than the blooming young starlet Rosemary Hoyt. When Rosemary falls for Dick, the Diver's calculated perfection begins to crack. As dark truths emerge, Fitzgerald shows both the disintegration of a marriage and the failure of idealism. Tender is the Night is as sad as it is beautiful.