Jo and Gilly date. They find out they're brother and sister. Jo moves away. Gilly finds out that he's not Jo's brother and that Jo's getting married. Can he stop the wedding in time?

Young orphan Gilly (Klein) finds out his lover Jo (Graham) might actually be his biological sister. After they break up, he discovers that they're not related after all, and he travels across the country to stop her impending wedding. Unfortunately, the entire nation has heard this story and thinks he's just after incestuous thrills.—Anonymous