When You Read This Letter (French: Quand tu liras cette lettre) is a 1953 French-Italian drama film directed by Jean-Pierre Melville and starring Philippe Lemaire, Juliette Gréco and Yvonne Sanson.

The film was a commercial success and permitted Melville to acquire his own studios to make his future productions.

[1] After their parents die in a road accident, a strongly moral young woman named Thérèse Voise leaves a convent shortly before taking her vows in order to care for her younger sister Denise and run the family stationery shop with her.

Thérèse is very protective of Denise and becomes concerned when her sister strikes up an acquaintance with Max, a young amateur boxer and garage mechanic.

He expected Biquet would use it instead, part of their scheme to steal Irène's money and then flee to Tangiers to start a new life.