"Deadly Matrimony" is a movie "inspired by a true story." The true story involved corrupt attorney Alan Masters and the murder of his beautiful wife, Dianne Masters. The crime thriller, also known by the title "Shattered Promises," debuted as an NBC television miniseries of the week in 1992 starring Brian Dennehy, Treat Williams and Embeth Davidtz. "Deadly Matrimony" is based on a manuscript entitled "Shattered Vows," according to The Internet Movie Database. All the real names were portrayed in the movie.
"Deadly Matrimony" follows the seemingly perfect marriage between hot shot lawyer Alan Masters and his wife Dianne Masters, which ends in her brutal murder. The perfect murder is covered up by the police force, the judge and all of the wives of Alan Masters' corrupt business partners. The movie peels back the layers of the intricate crimes of Alan Masters until the truth is finally exposed due to the work of one 'good cop,' Jack Reed.
The real story on which the movie is based made national news in 1982 when Diane Masters suddenly disappeared. The investigation into her disappearance went cold until her body was found in the trunk of her car, which had been submerged under water for several months. The real police investigator detailed and documented the corruption that was going on in the Chicago police department. His investigation led to the arrest and conviction of Alan Masters in 1989 for conspiring to kill his wife. Masters was sentenced to 40 years in prison but later died in 2000 at the age of 65, according to The Chicago Tribune. His accomplice Michael Corbitt died in 2004 from lung cancer.
The movie based on this case still airs on some cable stations.