To Let is book three of the Forsyte Saga, John Galsworthy's monumental chronicle of the lives of the moneyed Forsytes, a family whose values are at war with its passions.

In To Let, Jon and Fleur, now both nineteen years old, fall in love. However, when Jolyon informs his son of the past feud between the families, Jon decides that he cannot marry Fleur. Instead he travels to America, where his mother Irene later joins him. Fleur now throws herself at a long-standing admirer, Michael Mont, a fashionable baronet’s son, and the two are married.

Soames learns that his second wife, Annette, has been unfaithful to him and is left desolately contemplating the sale of Robin Hill. The Forsyte family begins to disintegrate when Timothy Forsythe, the last of the old generation, dies at the age of 100.