Bittersweet Love is a 1976 American DeLuxe Color romantic drama film directed by David Miller, written by Adrian Morrall and D.A.

After learning that she is pregnant, they decide to get married and hold a small ceremony in Canada, where Michael's family lives.

Patricia's parents, Ben and Claire, have never met Michael, and are out of the country when the wedding takes place.

While reviewing pictures from the wedding she missed, Claire is shocked to discover that she knows Michael's father; the two had a one-night stand after meeting at a USO dance years ago.

This one-night stand resulted in Patricia's birth; making the newly married couple half-siblings, with a pregnancy already underway.