Streaming Guide

How to Watch ‘Dexter: Original Sin’ Online Without Cable

The new prequel is now streaming on Paramount+ -- and there's an easy hack to tune in for free

By John Lonsdale

John Lonsdale

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December 16, 2024

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Patrick Gibson as Dexter Morgan in Dexter: Original Sin, episode 7, season 1, streaming on Paramount+, 2024. Adam Rose/Paramount+/Showtime

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Dexter officially wrapped over a decade ago, complete with a polarizing series finale that saw the character starting over. The story continued years later with a sequel series, Dexter: New Blood, in 2021. Now, the award-winning show’s received the prequel treatment, with Showtime going back to the Nineties to tell the serial killer’s bloody origin story with Dexter: Original Sin, now streaming on Paramount+.

At a Glance: How to Watch Dexter: Original Sin Online Without Cable

Get Paramount+ with Showtime Free Trial

“It really is like they say,” Michael C. Hall as Dexter’s “inner voice” says in the prequel’s trailer, “your life flashes before your eyes.” The Dexter: Original Sin cast includes Patrick Gibson, who stars as Dexter Morgan, Christian Slater as his father, Harry Morgan, and Molly Brown, who plays Debra Morgan. Sarah Michelle Gellar, meantime, also appears in the show, guest starring as Tanya Martin. The prequel also features Patrick Dempsey (Aaron Spencer), Christina Milian, James Martinez, Alex Shimizu, and Reno Wilson.

According to a Paramount+ synopsis, the prequel series “follows Dexter (Gibson) as he transitions from student to avenging serial killer. When his bloodthirsty urges can’t be ignored any longer, Dexter must learn to channel his inner darkness. With the guidance of his father, Harry (Slater), he adopts a Code designed to help him find and kill people who deserve to be eliminated from society without getting on law enforcement’s radar. This is a particular challenge for young Dexter as he begins a forensics internship at the Miami Metro Police Department.”

How to Watch Dexter: Original Sin Online for Free

Along with watching the new prequel series on TV on Showtime, viewers can stream the new episodes of Dexter: Original Sin with a Paramount+ with Showtime plan. Subscriptions start at $12.99 per month for new users, and include ad-free streaming for 40,000+ episodes and film titles. The Paramount+ with Showtime subscription also lets you stream on up to three devices at the same time.

Get Paramount+ with Showtime Free Trial

If you want to watch Dexter: Original Sin online for free, Paramount+ offers a 7-day free trial for its Showtime package. Once the trial ends, you’ll only get charged $12.99 for the monthly package. Viewers who want to stick with their plans can save up to 23% by going for an annual Paramount+ with Showtime subscription, which costs $119.99 for the year after the trial — $10 per month.

Get Paramount+ With Showtime Annual Plan

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