The Disappearance of Vonnie (1994)

When her sister supposedly walks away from her troubled marriage, a woman begins to suspect her brother-in-law of killing her. And although there is no body or murder weapon, the woman perseveres until she is finally able to arouse enough suspicion to bring the case to court. But this would be the only time in the history of Minnesota, and perhaps the country, that anyone would be convicted of murder without a body, making the film, which is based on an actual happening, all the more unpredictable in its outcome.