Frank, an angst-ridden young man, desperately wants to marry his girlfriend, Darlene, against her father’s wishes. When Frank inherits a large sum of money, he decides to buy a ring and propose. Unfortunately, he purchases the ring from Ted, a con artist with a slick pitch and a beautiful wife. Darlene’s disapproving parents easily identify the diamond as a worthless fake and encourage Darlene to break off the engagement.

To save his relationship, Frank sets out to confront Ted and opens direct, ill-advised negotiations. In the meantime, Frank’s lawyer, criminal investigators, the mob, and even the pizza boy get involved in the action. The harder Ted pushes Frank, the more determined Frank is to recoup his money and prove his love to Darlene.