Echoes in the Darkness is the title of a 1984 book by crime writer Joseph Wambaugh which also became a made-for-TV movie in 1987.

[2] The book details the lurid tale of the murder of Pennsylvania's Upper Merion Area High School English teacher Susan Reinert and her two children in 1979.

Both her boss, high school principal Jay C. Smith, and her lover and colleague William Bradfield were convicted, although Smith's conviction was later overturned, because of police and prosecutorial misconduct in the case.

The television production starred Treat Williams, Peter Coyote, Stockard Channing, Peter Boyle, Gary Cole and Robert Loggia, and was directed by Glenn Jordan.

The chief investigator, John J. Holtz of the Pennsylvania State Police, later admitted having accepted $50,000 from author Wambaugh.