Behind Closed Shutters (Italian: Persiane chiuse) is a 1951 Italian crime-melodrama film directed by Luigi Comencini and starring Massimo Girotti, Eleonora Rossi Drago and Giulietta Masina.

Turin: Sandra, daughter of a guardian, is engaged to Roberto, employed in a construction company.

The girl has a sister, Lucia, who has been estranged from home following a relationship deemed illicit.

To find Lucia, Sandra asks for help from the ambiguous Edmondo, known in the prostitution world.

Released she manages to reconnect with the exploiters who offer a ransom to free Lucia.