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The Serial Killer's Apprentice poster

Movie

The Serial Killer's Apprentice (2025)

  • 1h 23m
  • ★ 6.4 (8 votes)

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.

CrimeDocumentary
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Where to watch The Serial Killer's Apprentice

Included with a subscription in the United States:

  • HBO Max Amazon Channel
  • Discovery+ Amazon Channel
  • HBO Max
  • Discovery +

Available to buy:

  • Amazon Video

The Serial Killer's Apprentice trailer

Cast

  • Katherine Ramsland as Self
  • Wayne Henley as Self (voice)

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