- Country: USA
- Genres: Crime, Drama, Horror
- Release: 1914-08-24
- Director: D.W. Griffith
- Writers: Edgar Allan Poe (1809–1849) , D.W. Griffith
- Language: English
- Stars: Henry B. Walthall , Spottiswoode Aitken , Blanche Sweet , George Siegmann , Ralph Lewis , Mae Marsh , Robert Harron , George Beranger , Josephine Crowell , Walter Long
- Runtime: 78 min
- Awards: N/A
- AKA: Zemsta sumienia (Poland) , Svedomí zlocinu (Czech Republic) , The Avenging Conscience: or 'Thou Shalt Not Kill' , 恐ろしき一夜 (Japan) , La conciencia vengadora (Spain) , The Murderer's Conscience (United States of America) , A bosszúálló lelkiismeret (Hungary) , Совесть-мститель (Russian Federation) , Thou Shalt Not Kill , The Avenging Conscience: or 'Thou Shalt Not Kill' (United States of America) , The Telltale Heart (United States of America) , Du maa ikke ihjelslaa (Denmark) , Consciência Vingadora (Portugal, Portuguese Republic)
- Plot: Thwarted by his despotic uncle from continuing his love affair, a young man turns to thoughts of murder. Experiencing a series of visions, he sees murder as a normal course of events in life and kills his uncle. Tortured by his conscience, his future sanity is uncertain as he is assailed by nightmarish visions of what he has done.
- IMDB:tt0003643
The Avenging Conscience: or ‘Thou Shalt Not Kill’ Cast · · · ALL
D.W. Griffith
Director
Henry B. Walthall
The Nephew
Spottiswoode Aitken
The Uncle
Blanche Sweet
The Sweetheart
George Siegmann
The Italian
Ralph Lewis
The Detective
Mae Marsh
The Maid
Robert Harron
The Grocery Boy
George Beranger
Donald Crisp
(I)
(1882–1974)
Josephine Crowell
The Sweetheart's Mother (uncredited)
Walter Long
The Detective (uncredited)
Wallace Reid
The Doctor (uncredited)