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Poster for Dexter: Original Sin
The beginning (1991) · Miami, 1991

Dexter: Original Sin

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Young Dexter interns with the police and starts killing under Harry's rules

Runtime8h40Where to watchTBCIn your marathonnot seen yet
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Do you need to watch it before Resurrection · T2?

Not required. It's left out of the main story but is part of the full chronological order.

Where it falls in the order

  • Main storynot included
  • Chronological1 of 12
AfterDexter · S1

Rating

—/10
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Spoilers for this title

Quick recap

Miami, 1991. Fresh out of college, Dexter Morgan starts as a forensics intern at Miami Metro, where his adoptive father Harry works. Dexter already feels the urge to kill, and Harry gives him rules so he only goes after the guilty and never gets caught. His first victim is a nurse who kills patients. His sister Debra feels pushed aside by their father. The big case is the kidnapping of the son of Captain Aaron Spencer, Harry's boss. The investigation leads Dexter back to Spencer himself, and Dexter kills him on a boat and dumps the body at sea. In the end, Debra announces she wants to join the police, and the family celebrates.

No spoilersOpens once you mark the title as seen.
3 easter eggs

Hidden details

  1. CameoMichael C. Hall inside young Dexter's head

    Patrick Gibson plays young Dexter, but his inner voice belongs to Michael C. Hall, who also shows up as adult Dexter.

    source ↗
  2. CameoChristian Slater as Harry

    Christian Slater plays Harry Morgan, the adoptive father James Remar played in the original series. Molly Brown is young Debra.

    source ↗
  3. Behind the scenesIt started as Dexter: Origins

    Showtime ordered the show in February 2023 as Dexter: Origins. It was renewed in 2025, then canceled that August before S2 was shot.

    source ↗
No spoilersThe easter eggs give away parts of the title. They open once you mark it as seen.

Comments

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