Trying to prove to her daughter that her nightmares aren't real, widowed mother Kim Shay 'investigates,' unwittingly bringing danger into their lives. Kim follows a trail that not only leads to the killer of a past victim, but also of her own husband.

Bill Goodman is a celebrated psychiatrist who leads a double life: he has a wife and daughter in New York; at the same time, the bigamist has another wife in London. Despite his long absences both families lived in domestic bliss, until one day the wives find out about each other and team up to turn on the man who so cunningly made everyone happy for so long...

Dead on Target is the third and final film in the Our Man Flint movie trilogy. The film originally aired on ABC on March 17, 1976. The TV movie was also a pilot for a possible weekly series, but it did not get good enough ratings to warrant such, and Dead On Target became the last Derek Flint movie.