Thrillers are the adrenaline of television—they keep you glued to the screen with twists, tension, and unforgettable characters. But while shows like Black Mirror and Breaking Bad dominate conversations, a treasure trove of equally gripping series flies under the radar. These underrated gems deliver the same heart-pounding excitement but never quite break into the mainstream. Ready to discover your next obsession? Here are eight stellar thriller series that no one ever talks about.
1. The Terror (2018–Present)
Based on Dan Simmons' novel, The Terror is an anthology that blends historical events with supernatural horror. Season one reimagines the doomed 19th-century Arctic expedition of Captain Sir John Franklin, while season two shifts to Japanese American internment during WWII. The upcoming third season, adapted from Victor LaValle's The Devil in Silver, follows a man wrongfully committed to a psychiatric hospital. With a rotating cast including Ciarán Hinds, Jared Harris, George Takei, and Dan Stevens, the series masterfully combines folk horror, psychological dread, and chilling historical truths. Despite critical acclaim, it remains one of the most underrated shows of the 2010s.
2. Devs (2020)
From Alex Garland, the visionary behind Ex Machina, comes Devs—a sci-fi thriller miniseries that questions reality itself. Lily (Sonoya Mizuno), a software engineer at a quantum computing company, investigates her boyfriend's mysterious death and uncovers a secret division called Devs, led by the enigmatic CEO Forest (Nick Offerman). The show weaves high-concept science fiction, existential philosophy, and horror into a hauntingly beautiful narrative. With stunning visuals and mind-bending effects, Devs is a hidden gem that deserves far more attention. For more underrated sci-fi thrills, check out our list of 20th Century's Best Sci-Fi Thrillers.
3. The Devil's Hour (2022–Present)
This British drama-thriller follows Lucy (Jessica Raine), a social worker who wakes every night between 3 and 4 a.m. with terrifying visions. When her name surfaces in connection with a series of murders, she enlists the help of a mysterious criminal (Peter Capaldi) who claims to see the future. The slow-burn mystery is intensely creepy, elevated by Capaldi's compelling performance and his chemistry with Raine. The Devil's Hour is a genre-bending masterpiece that ranks among the most underrated British detective series. If you love dark mysteries, you'll also enjoy The Ultimate Gillian Flynn Psychological Thriller Book List.
4. Inside Man (2022)
From Steven Moffat, Inside Man stars Stanley Tucci as Jefferson Grieff, a criminology professor on death row in Arizona. When a British crime journalist asks for his help finding a missing friend, his investigation points to a vicar (David Tennant) in an English village facing a moral crisis. Though the series received mixed reviews, it excels in its nuanced performances and gripping exploration of ordinary people pushed to extraordinary decisions. Tucci and Tennant deliver career-best work in this four-part thriller.
5. River (2015)
Stellan Skarsgård stars as Detective Inspector John River, a brilliant but haunted London cop who sees the ghosts of murder victims. This six-episode series is a psychological thriller that delves into grief, trauma, and justice. Skarsgård's raw performance anchors the show, making it a deeply emotional and suspenseful watch. Despite critical praise, River remains a hidden gem for fans of character-driven crime dramas.
6. Limitless (2015–2016)
Based on the 2011 film, this TV adaptation follows Brian Finch (Jake McDorman), who uses the cognitive-enhancing drug NZT to solve crimes for the FBI. With Bradley Cooper reprising his role as Eddie Morra, the series blends sci-fi, action, and thriller elements with a witty tone. Though it only lasted one season, Limitless is a fast-paced, entertaining ride that deserves a second look. For more action-packed thrills, see 7 Action Thrillers That Outgun John Wick.
7. Absentia (2017–2020)
Stana Katic stars as FBI agent Emily Byrne, who reappears after being declared dead for six years—with no memory of her captivity. As she tries to rebuild her life, she becomes a suspect in a new series of murders. Absentia is a tense, twist-filled thriller that explores identity, trauma, and redemption. Katic's powerful performance drives this underrated series, which ran for three seasons on Amazon Prime.
8. The Five (2016)
From Harlan Coben, this British thriller follows five childhood friends whose lives are upended when one of them returns after being missing for 20 years. The series unravels secrets, lies, and a decades-old mystery that keeps viewers guessing. With strong performances and a tightly woven plot, The Five is a must-watch for fans of psychological thrillers. For more gripping mysteries, explore Thrillers That Never Let Go.
These eight series prove that the best thrills often come from the most unexpected places. Whether you're into supernatural horror, sci-fi, or psychological drama, these hidden gems are ready to be discovered. So dim the lights, grab your remote, and prepare for a binge-worthy journey into the unknown.
