This fall, there are more than a few mysteries to be uncovered, whether it’s by a group of retired amateur sleuths, an FBI task force, a group of children living in small-town Maine or the only unhappy woman in the world — trust us, the last isn’t as dour as it seems (there are donuts).

Here’s a lineup of fall shows that will keep you guessing:

“The Thursday Murder Club”

(Netflix, Aug. 28)

The first of Richard Osman‘s wonderful series of novels concerning a group of British retirees who recreationally solve murders has become an almost-straight-to-Netflix feature with a cast that in olden times would have guaranteed a long theatrical ride. Helen Mirren plays Elizabeth, with a background in intelligence; Pierce Brosnan is Ron, a combative ex-trade unionist; Ben Kingsley plays Ibrahim, a shy former psychiatrist; and Celia Imrie is Joyce, the chirpy newcomer, with Naomi Ackie as Donna, the bored police officer who falls under their collective spell. (Plus David Tennant, Richard E. Grant and Jonathan Pryce, if that isn’t enough British thespian firepower for you.) As a fan of the books, I will approach it with some trepidation, but I will absolutely approach it.— Robert Lloyd

“Task”

(HBO, Sept. 7)

Crime dramas are a dime a dozen, but sometimes one stands out from the crowd and keeps you hooked. The latest HBO series from Brad Ingelsby, who famously brought us Kate Winslet in a Delco accent in “Mare of Easttown,” may well do that. Like “Mare,” it is also set in Pennsylvania, but this time the story revolves around an FBI agent named Tom played by Mark Ruffalo, who is charged with leading a task force to uncover who is behind a string of robberies. Parallel to his story is that of Robbie (Tom Pelphrey) and his best friend Cliff (Raúl Castillo), sanitation workers who are trying to make ends meet. Secrets, twists and turns lie ahead that bridge their stories together and make you question the gray areas between good, bad, wrong and right.— Maira Garcia

“The Lowdown”

(FX, Sept. 23)

Sterlin Harjo, who last gave us “Reservation Dogs,” is back with another Oklahoma-set series, a noir excursion loosely based on citizen journalist Lee Roy Chapman. Ethan Hawke, here called Lee Raybon, is a Tulsa amateur “truthstorian” and rare book dealer, working and living in a store where the cool people hang out. His yen to cure civic rot in the light of day brings him into the orbit of a powerful family, including a suicide (Tim Blake Nelson), a widow (Jeanne Tripplehorn), and a candidate for governor (Kyle MacLachlan). Kaniehtiio Horn, the Deer Lady on “Rez Dogs,” plays his ex-wife because in a show like this, any wife is bound to be an ex, with Ryan Kiera Armstrong as their Nancy Drew of a teenage daughter, and Keith David bringing his formidable Keith David-ness.— R.L.

“IT: Welcome to Derry”

(HBO, October)

You just can’t put a terrifying clown down. Almost 40 years have passed since Stephen King terrified readers with “IT,” his massive novel about a vicious clown named Pennywise who targets the children of Derry, Maine. A 1990 miniseries and two theatrical films followed. “Welcome to Derry” continues the “IT“-verse as a prequel set in the 1960s before the “IT” and “IT Chapter 2” films. Bill Skarsgård reprises his portrayal of Pennywise as the series unveils the origins of the menacing clown, while also spotlighting a group of residents wrestling with their own fears and demons. Andy Muschietti, who directed the “IT” films, helped develop the series and is one of the executive producers. The cast includes Jovan Adepo and Taylour Paige.— G.B.

“Pluribus”

(Apple TV+, Nov. 7)

If you thought the grainy footage of Ariana Grande surreptitiously licking a doughnut inside an L.A. shop a decade ago sent shivers down your spine — health codes matter, people! — the first teaser for Vince Gilligan’s new TV opus is just as chilling to behold. Ditching “Better Call Saul’s” signature cinnamon roll pastry for the hole-y American staple, the trailer for the new series takes place in the dead of night at an office building and settles on a woman, in a pink uniform, licking the tops of doughnuts one by one — ASMR at its eeriest — before placing them back in their box as a sign that reads “Help yourself!” with a smiley face comes into focus. Uh, what? The series reunites Gilligan with “Better Call Saul’s” Rhea Seehorn, who was the show’s beating heart with a ponytail as Kim Wexler, a skilled lawyer who gets caught up in the antics and schemes of Jimmy McGill/Saul Goodman.

In this genre-bending sci-fi drama, she is the most miserable person on Earth who must save the world from happiness — it’s the sort of TV premise that feels like it was tailor-made for my 2025 fatigue. In addition to Seehorn, the series stars Karolina Wydra (“Sneaky Pete”) and Carlos-Manuel Vesga (“The Hijacking of Flight 601”), and guest stars Miriam Shor (“American Fiction”) and Samba Schutte (“Our Flag Means Death”). It’s already been picked up for a second season so you can go in knowing there are no commitment issues.— Y.V.

Mark Ruffalo, left, leads HBO’s “Task,” created by Brad Ingelsby of “Mare of Easttown.” (Peter Kramer/HBO/TNS)