Unlike The Man in the Gray Flannel Suit, the sequel is told in the first person: Tom Rath narrates the continuing story of his life.
The son visits his father at the Rath home in Southport, Connecticut only to venture out on his own, eventually enlisting in the United States Army with a tour of duty in South Vietnam.
He decides to finally leave his wife, marries the younger woman, and moves to the city of New York to start a new life with her.
Wilson shows Rath's feelings as his marriage breaks up; his estrangement from his three grown children by his wife Betsy; the end of his suburban life in Fairfield County, Connecticut; the happiness and stress of a serious relationship with a younger woman; and the return and, ultimately, death of his Italian son.
: The Man In The Gray Flannel Suit, Twenty Years Before & After, published in 1976, also marked Wilson's last non-fiction effort.