Pietro, a respected teacher, and Teresa, his former student, are drawn into an illicit and tempestuous affair. After a quarrel, Teresa proposes a pact: each will reveal a secret to the other—one that, if exposed, will ruin the life of the person who holds it forever. Years pass, and Pietro becomes a renowned writer, his family enjoys a comfortable bourgeois life, but the pact continues to haunt him. Trust is based on the bestselling novel by Domenico Starnone. Under the skillful direction of acclaimed Italian filmmaker Daniele Luchetti, the source material transforms into a stylish, sophisticated, and sharply discerning suspense drama, exploring the profound impact of love and fear on our lives.