Desc: Best Kept Secrets: Directed by Jerrold Freedman. With Patty Duke, Frederic Forrest, Peter Coyote, Meg Foster. Laura Dietz (Patty Duke Astin) plays the wife of police officer Blaise Dietz (Frederic Forrest), who wants to join a special investigative unit. Officer Dietz is denied this position on the basis of information concerning his wife. The information, which reveals a dicey extramarital affair, was culled from a department surveillance file that was supposed to have been destroyed by court order. Laura (Patty Duke) battles through legal channels to expose the police force's illegal actions, even as she and her husband suffer the innuendos and cold shoulders from his fellow officers.