Watch The Serial Killer's Apprentice for Free in 123Movies
The Serial Killer's Apprentice (2025) – Official Trailer, Cast & Details
The Serial Killer's Apprentice at a Glance
The Serial Killer's Apprentice is a 2025 documentary and crime film starring Katherine Ramsland and Wayne Henley. It has a runtime of 1 hour 23 minutes and premiered on August 17, 2025. The Serial Killer's Apprentice has a TMDB rating of 6.4 out of 10 based on 8 votes.
Watch the official The Serial Killer's Apprentice trailer for free in 123Movies below.
1080p HD • Free YouTube Stream
Storyline & 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 “The Serial Killer's Apprentice” Fits in the 123Movies Catalog
Frequently Asked Questions About The Serial Killer's Apprentice
When was The Serial Killer's Apprentice released?
The Serial Killer's Apprentice was released on August 17, 2025.
What is the runtime of The Serial Killer's Apprentice?
The Serial Killer's Apprentice has a runtime of 1 hour 23 minutes (83 minutes).
Who stars in The Serial Killer's Apprentice?
The Serial Killer's Apprentice stars Katherine Ramsland as Self and Wayne Henley as Self (voice).
What genre is The Serial Killer's Apprentice?
The Serial Killer's Apprentice is listed on TMDB as a mix of documentary and crime.
What is the TMDB score of The Serial Killer's Apprentice?
On TMDB it has an average user score of 6.4/10 from 8 votes.
Where can I watch the trailer for The Serial Killer's Apprentice for free?
You can watch the trailer for The Serial Killer's Apprentice, "The Serial Killer's Apprentice | Official Trailer | True Crime Documentary | MAX | ID", for free on this 123Movies page. It is embedded from YouTube.
What movies are similar to The Serial Killer's Apprentice?
Movies TMDB recommends alongside The Serial Killer's Apprentice include Maternal Instinct (2026), Voyeur (2017), Aileen: Queen of the Serial Killers (2025), A Toxic Love Story (2026) and The Mystery of D.B. Cooper (2020).
Can I stream the full movie of The Serial Killer's Apprentice on 123Movies?
No. 123Movies only shows official trailers and title information. Full movies are not hosted or linked on this site.
Maternal Instinct
Voyeur
Aileen: Queen of the Serial Killers
A Toxic Love Story
The Mystery of D.B. Cooper
Evil Influencer: The Jodi Hildebrandt Story
Ted Bundy: Mind of a Monster
Out of Thin Air
Con Mum
The Menendez Brothers
The Crash
