Who's That Knocking at My Door (1967)

J.R., a Catholic Italian-American from New York City, meets a young woman on the ferry and falls in love. Determined to marry her, he vows to wait for intimacy, believing her to be a virgin. However, their bond shatters when she reveals a traumatic incident from her past. Unable to reconcile her truth with his rigid ideals, J.R. questions whether their relationship can survive under the weight of his judgment and her pain.