The In-Laws

A mild-mannered dentist is about to marry off his daughter, but he's never met the boy's father. When the father of the groom comes to dinner, he brings with him weird behavior and an international plot that involves stolen plates for U.S. currency. This is bad enough, but it occurs to him that no one would be suspicious of a dentist, and he begins to ask for a few favors that have people trying to kill our hero.