Everything We Know About Dexter’s Canceled Trinity Killer Spinoff

The first new show was Original Sin, which premiered on Showtime and Paramount+ in 2024. Following that, a prequel series focusing on John Lithgow’s character, the Trinity Killer, was in the works. Though ultimately cancelled, this series had progressed quite far – John Lithgow had already committed to the project, and scripts for all episodes had been completed.






