There are few things as gratifying as a well-done mystery TV series (or a movie, while we’re on the subject). When the killer is finally unmasked, the shocking twist is revealed, or the tiniest detail turns out to be the most important evidence, it’s a viewing reward like none other.

If you’re in the mood to test your powers of deduction, allow us to suggest 12 engrossing series to choose from. From strange disappearances to unsolved murders to family secrets, each puzzle is as gripping and perplexing as the next. And they include all different kinds of mysteries, from horror stories to psychological thrillers, dark comedies, and everything in between (looking at you, Wednesday). So take a peek and press play — because whether you “totally called it” or “didn’t see it coming at all” by the end, the fun is in watching it all unfold.

Victoria Pedretti as Dani in ‘The Haunting of Bly Manor.’

The Haunting of Bly Manor
Mystery subgenre: Horror

Shortly after the death of their parents, Flora Wingrave (Amelie Bea Smith) and her brother, Miles (Benjamin Evan Ainsworth), move into their family’s summer home, Bly Manor, with gardener Jamie (Amelia Eve), cook Owen (Rahul Kohli), and housekeeper Hannah (T’Nia Miller). Their Uncle Henry (Henry Thomas) hires Danielle Clayton (Victoria Pedretti), an American au pair, to look after them — a job Dani accepts in an attempt to escape her own tragic past. But right after Dani moves in, she begins to discover the horrors the house holds, and what it’ll take to protect her charges at all costs. This series comes from horror master Mike Flanagan, who also gave us The Haunting of Hill House — be sure to pair them together if you want a dynamic duo of spine-tingling stories.

 Jenna Ortega as Wednesday Addams in ‘Wednesday.’

Wednesday
Mystery subgenre: Supernatural

Wednesday Addams is brought to life — as much as the deadpan character gets, that is — by Jenna Ortega in this coming-of-age series about one of television’s most iconic families. After Wednesday is expelled from school for an incident involving the boys’ water polo team and piranhas (yikes!), her parents, Gomez (Luis Guzmán) and Morticia (Catherine Zeta-Jones), enroll her in their alma mater, Nevermore Academy, a haven for outsiders of all sorts. But as soon as she arrives at her new school, the psychic-powered Wednesday becomes involved in a murder mystery — one that also involves her parents and past secrets. Part spooky supernatural-horror, part kooky comedy, Wednesday is one to watch any and every day of the week.

Holt McCallany and Jonathan Groff in ‘Mindhunter.’

Mindhunter
Mystery subgenre: Psychological crime thriller

Ever wanted to look inside the mind of a serial killer? That’s the job of FBI agents Holden Ford (Jonathan Groff) and Bill Tench (Holt McCallany). Together with psychologist Wendy Carr (Anna Torv), the trio makes up Quantico, Virginia’s new Behavioral Science Unit (BSU). Set in the late ’70s to early ’80s, the series chronicles the origins of the BSU and criminal profiling. To inform their work, Holden and Bill visit imprisoned killers to record their stories, reasoning that if they can understand the psychology behind these individuals, they can use it to inform open cases. As Holden and Bill meet with an infamous lineup of killers (Edmund Kemper, Son of Sam, Charles Manson, and more), they attempt to solve the unsolvable — why each of these murderers did what they did.

The cast of ‘High Seas.’

High Seas
Mystery subgenre: Murder (on a boat!)

How do you make a murderer on the loose an even more stressful situation? Just add water. In this Spanish series, a series of deaths occur aboard a luxury cruise ship traveling from Spain to Brazil in the ’40s. Stuck in the middle of an ocean where everyone’s a suspect, no one feels safe. Passengers-slash-sisters Eva (Ivana Baquero) and Carolina Villanueva (Alejandra Onieva) begin to investigate the murders, but they also uncover some disturbing family secrets in the process. With a compelling cast of characters, suspenseful plot, and lots of soapy drama, High Seas is a nautical adventure you won’t want to miss.

 A scene from ‘Inside Man’

Inside Man
Mystery subgenre: Thriller

This four-episode series introduces us to Jefferson Grieff (Stanley Tucci), a former criminology professor in prison for killing his wife and who now offers his advice on cold cases. His most eager listener is a journalist named Beth (Lydia West); Grieff and his assistant, fellow death row inmate Dillon (Atkins Estimond), equip her to solve cases herself. In a second storyline, we meet Reverend Harry Watling (David Tennant), a vicar entangled in a crime of his own in order to protect his parishioner friend, Edgar (Mark Quartley), and his son, Ben (Louis Oliver). How the stories connect and who’s actually guilty of what remains to be seen.

Cast of ‘Get Even.’

Get Even
Mystery subgenre: Teen

At a British private school, four classmates — Olivia (Jessica Alexander), Margot (Bethany Antonia ), Bree (Mia McKenna-Bruce), and Kitty (Kim Adis) — form a vigilante club they dub “DGM” or “Don’t Get Mad” (… you know the rest). As “co-workers in the department of vengeance,” the girls focus their efforts on exposing bullies and dispensing justice on behalf of the student body. But things take a dark turn when a classmate is killed and discovered on his front lawn. Found in his hand? A note that reads “DGM.” in an attempt to frame the anonymous group. Now the foursome must protect their identities and prove DGM’s innocence by finding the real murderer. Isn’t high school fun?

The cast of ‘Dark’ walk in the woods with flashlight. 

Dark
Mystery subgenre: Sci-fi

In 2019, children begin to go missing in a small German town called Winden, bearing an eerie resemblance to disappearances that happened decades earlier. As Winden’s residents search for the boys, what they find is, well, a lot: a cave that allows for time-travel and a sinister conspiracy that spans multiple generations. Now the dark secrets and cover-ups of four estranged families — the Dopplers, Nielsens, Kahnwalds, and Tiedemanns — are coming to light, with implications for the past, present, and future of the town. Smart, referential, and even philosophical at times, this German sci-fi mystery series’ three seasons are true mind-benders. Pay attention, and the pay-off is absolutely brilliant.

Man holds camera in bar in ‘Stay Close’

Stay Close
Mystery subgenre: Murder

Based on a novel of the same name from renowned mystery author Harlan Coben, this British mini-series follows the interconnected lives of newly engaged soccer mom Megan Pierce (Cush Jumbo), burned-out homicide detective Michael Broome (James Nesbitt), and determined photojournalist Ray Levine (Richard Armitage), whose girlfriend disappeared. Speaking of disappearances, our story begins with the vanishing of Carlton Flynn (Connor Calland), exactly 17 years after another man, Stewart Green (Rod Hunt), also went missing. Having been unable to find Stewart all those years ago, Detective Broome takes on Carlton’s case in hopes of redemption. But his digging unearths lies, secrets, and memories of past events that everyone involved would prefer to stay hidden and far away.

Man waits for train in the show ‘Safe.’

Safe
Mystery subgenre: Drama

Another Harlan Coben adaptation, this one follows widowed pediatric surgeon Tom Delaney (Michael C. Hall), who’s trying to connect with his grieving teenage daughters in the aftermath of their mother’s death. His oldest, Jenny (Amy James-Kelly), resists his attempts and seems to harbor resentment toward her father for reasons unknown. A year later, Jenny goes missing — along with her boyfriend, Chris (Freddie Thorp) — after a house party in a wealthy neighborhood. Now Tom must follow clues to find the teens and what led to their disappearance. Turns out, the truth is a lot more complicated than Tom could’ve ever imagined and involves many of the people who are closest to him — including his dead wife.

Eve Hewson and Simona Brown in ‘Behind Her Eyes.’

Behind Her Eyes
Mystery subgenre: Psychological thriller

Single mom Louise (Simona Brown) has just started her new job as the secretary for a successful psychiatrist, Dr. David Ferguson (Tom Bateman) –– it isn’t long before the two strike up an affair. But to make matters messier, Louise also befriends David’s wife, the mysterious Adele (Eve Hewson), and can’t seem to keep away from her, despite her guilt. But this love triangle has more sides to it than most, and soon Louise is caught up in a dangerous web of deceit, betrayal, and mind games she can’t win. With elements of noir and the supernatural, this suspenseful British series is based on a Sarah Pinborough novel of the same name. Prepare for one twisted reveal after the next, all the way up to an ending that’ll rock you to your core.

Kristen Bell as Anna in ‘The Woman in the House Across the Street from the Girl in the Window.’

The Woman in the House Across the Street from the Girl in the Window
Mystery subgenre: Dark comedy

If the title didn’t clue you in, this series pokes fun at tons of mystery tropes: a reclusive, unreliable narrator, addiction problems, blackout episodes, dubious law enforcement officers, a tragic backstory, vague titles with nondescript nouns. Kristen Bell stars as Anna, a painter mourning the death of her daughter, Elizabeth (Appy Pratt), and the resulting loss of her marriage. Anna stays cooped up in her house all day (she has a faint-inducing fear of rain), popping pill and wine bottles, and experiencing vivid hallucinations alongside strange voices coming from her attic. One day, she witnesses the murder of a woman (Shelley Hennig) at her neighbor’s house, where a widower named Neil (Tom Riley) has just moved in with his 9-year-old daughter, Emma (Samsara Leela Yett). Anna calls 911, but the police find no evidence of foul play and doubt Anna’s credibility. So it’s up to the woman in the house across the street from the girl in the window to discover the truth — before she’s next.

Jessica Biel and Christopher Abbott sitting on the beach in ‘The Sinner.’

The Sinner
Mystery subgenre: Murder

Bill Pullman stars as Detective Harry Ambrose in this police procedural anthology series that investigates a different harrowing crime in each of its four seasons. As Detective Ambrose tries to make sense of the dark and demented happenings that surround his cases, he has his own demons to contend with. The first season, based on a Petra Hammesfahr novel of the same name, stars Jessica Biel as Cora Tannetti, a kindhearted wife and mother who — seemingly out of nowhere — inexplicably stabs a man to death with a paring knife during a family trip to the lake. But Ambrose rightly suspects the murder isn’t as random as it seems…