Shadow of a Doubt (1943)
Joseph Cotton star as Uncle Charlie, a calculating and charming killer who hides out in his relatives' small hometown. There, he befriends his favorite niece and namesake, Young Charlie (Teresa Wright). But she begins to suspect he may be the famed Merry Widow murderer. A deadly game of cat and mouse ensues as the psychopathic killer plots the death of his young niece to protect his secret.