Saint X is an American psychological drama television series developed by Leila Gerstein, based on the novel of the same name by Alexis Schaitkin.

Based on the bestselling novel, this psychological drama follows the story of Emily Thomas on her dangerous mission to find out the truth about what happened to her older sister, Alison, who was brutally murdered and raped on an idyllic trip to the Caribbean 20 years earlier.

[4] The series is developed by Leila Gerstein, who executive produced alongside Schaitkin, Dee Rees, Stephen Williams, David Levine, Zack Hayden, Aubrey Drake Graham, Adel "Future" Nur, Jason Shrier, and Steve Pearlman.

[10] On January 12, 2023, upon the series premiere date announcement, it was reported that Bre Francis and Kenlee Anaya Townsend are also part of the main cast.

The website's critics consensus reads, "A tedious crawl to an unsatisfying destination, Saint X only marks time instead of hitting the spot.