ReelSeekAdvanced search
The Serial Killer's Apprentice poster
MOVIE

The Serial Killer's Apprentice

TMDb6.4IMDbView on IMDb ↗2025-08-17· 83 min
DocumentaryCrime

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.

Top cast

Where to watch

Netflix
Netflix
Not available on this platform
Type
—
Starts
Not available
Ends
Not available
Category
Not available
OSN+
OSN+
Available
Watch
Type
Subscription
Starts
Not available
Ends
Not available
Category
Not available
Amazon Prime Video
Amazon Prime Video
Not available on this platform
Type
—
Starts
Not available
Ends
Not available
Category
Not available
Shahid
Shahid
Not available on this platform
Type
—
Starts
Not available
Ends
Not available
Category
Not available
Watch It
Watch It
Not available on this platform
Type
—
Starts
Not available
Ends
Not available
Category
Not available
TOD
TOD
Not available on this platform
Type
—
Starts
Not available
Ends
Not available
Category
Not available
Disney+
Disney+
Not available on this platform
Type
—
Starts
Not available
Ends
Not available
Category
Not available
Apple TV+
Apple TV+
Not available on this platform
Type
—
Starts
Not available
Ends
Not available
Category
Not available

Availability can change as licenses rotate — confirm on the provider’s page before subscribing. Last checked: 14 Jul 2026.