Love on a Pillow (Le Repos du guerrier) is a 1962 French film starring Brigitte Bardot and directed by Roger Vadim.
Plot
Geneviève Le Theil is a financially independent woman in Paris engaged to Pierre.
She goes to Dijon to collect an inheritance. She enters the wrong hotel room and accidentally foils the suicide of a penniless alcoholic, Renaud, who has taken an overdose of sleeping pills.
Renaud seduces Geneviève and persuades her to take him with her to Paris. Once there she severs ties with her mother, her friends, and Pierre, despite Renaud treating her badly.
When Renaud picks up a prostitute, Genevieve leaves him. But then he proposes marriage and she accepts.