First-Time Viewing
The Serial Killer's Apprentice
Release Date:August 17, 2025
Running Time:Running time TBD
Spoiler-Safe Overview
This page avoids major plot turns, twists, and ending details. It’s designed to help first-time viewers decide if this movie is right for them.What counts as a spoiler can vary by viewer.
Synopsis
Dr. Katherine Ramsland interviews Elmer Wayne Henley, the sole survivor of the 1973 Houston Mass Murders, to unravel his chilling journey from manipulated teen to convicted killer — and the terrifying truth behind the line between victim and predator.
Where to watch
US
Streaming
HBO Max
HBO Max Amazon Channel
Discovery+ Amazon Channel
Discovery +
Buy
Amazon Video
Availability data provided by JustWatch (via TMDB).
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