Natural Enemies (1979) 
Genre: Drama | Thriller
Country: USA | Director: Jeff Kanew
Language: English | Subtitles: English (Optional, embedded in Mkv file)
Aspect ratio: Widescreen 1.85:1 | Length: 100mn
Bdrip H264 Mkv – 1920×1036 – 23.976fps – 3.83gb
https://www.imdb.com/title/tt0079613/

Audio 2: Commentary by Bill Ackerman of the Supporting Characters podcast

A successful magazine publisher is frustrated with his dreary job and failing marriage and family life. After failing to find a solution to his problems, he plots to kill his wife and children, seeking advice by disguising his plan as a fictional story for his business.

Natural Enemies (1979)