Series to Watch
  • Home
  • TV Series
    Episodes Airing Today New TV Series Popular TV Series Top Rated TV Series

Popular Mystery TV Series on Free Services - Page 6

New Popular Top Rated
All Services Free Services
Netflix Netflix Amazon Prime Video Amazon Prime Video Apple iTunes Apple iTunes Apple TV Plus Apple TV Plus Disney Plus Disney Plus Google Play Movies Google Play Movies Paramount Plus Paramount Plus Hulu Hulu HBO Max HBO Max YouTube YouTube fuboTV fuboTV Peacock Peacock Peacock Premium Peacock Premium Amazon Video Amazon Video The Roku Channel The Roku Channel AMC+ AMC+ AMC on Demand AMC on Demand Kocowa Kocowa Hoopla Hoopla The CW The CW Vudu Vudu Starz Starz Showtime Showtime PBS PBS Pantaflix Pantaflix FXNow FXNow Tubi TV Tubi TV Kanopy Kanopy Comedy Central Comedy Central Crunchyroll Crunchyroll Microsoft Store Microsoft Store Redbox Redbox Sun Nxt Sun Nxt ABC ABC DIRECTV DIRECTV Crackle Crackle Fandor Fandor Plex Plex
All Genres
Action Adventure Animation Comedy Crime Documentary Drama Family Kids Mystery News Reality Sci-Fi Fantasy Soap Talkshow War Politics Western
apps menu
  • Agatha Raisin

    2016

    Agatha Raisin

    2016

    star 6.1
    Burnt out on office politics, Agatha Raisin retires early to a picturesque village in the Cotswolds and soon finds a second career as an amateur detective investigating mischief, mayhem, and murder in her deceptively quaint town.
  • Wolfblood

    2012

    Wolfblood

    2012

    star 8
    Being a teenager is hard enough. Being a Wolfblood teenager is ten times more complicated. 14 year old Maddy loves her abilities - heightened senses, being faster, stronger and more graceful - but hates the secrets that come with them.
  • Father Brown

    1974

    Father Brown

    1974

    star 6.8
    Based on the short stories by G. K. Chesterton, Father Brown is a Roman Catholic priest and amateur detective.
  • Monsieur Spade

    2024

    Monsieur Spade

    2024

    star 6.2
    Detective Sam Spade is pulled out of his tranquil retirement in France to investigate a series of brutal murders.
  • Moonlight

    2007

    Moonlight

    2007

    star 7.3
    Mick St. John is a captivating, charming and immortal private investigator from Los Angeles, who defies the traditional blood-sucking norms of his vampire tendencies by using his wit and powerful supernatural abilities to help the living.
  • Eerie, Indiana

    1991

    Eerie, Indiana

    1991

    star 7.6
    Teenage weirdness investigator Marshall Teller adventures through his new small-town home with his friends, geeky Simon Holmes and mysterious Dash X.
  • Dalgliesh

    2021

    Dalgliesh

    2021

    star 6.8
    A recent widower and acclaimed poet, enigmatic Inspector Adam Dalgliesh employs his exceptional empathy and insight to plumb the darker depths of the human psyche while investigating complex crimes in 1970s England.
  • Pine Gap

    2018

    Pine Gap

    2018

    star 6.7
    A team of talented Australian and American intelligence analysts work together to ensure global stability in one of the world's most important and secretive joint intelligence facilities... Pine Gap. But the relationship between the Australian and American intelligence analysts working at Pine Gap isn’t always rosy.
  • The Island

    2020

    The Island

    2020

    star 6.8
    A deadly virus hits a small community living on an island in the North Sea.
  • Inspector Montalbano

    1999

    Inspector Montalbano

    1999

    star 8.4
    Inspector Montalbano is an Italian television series produced and broadcast by RAI since 1999, based on the detective novels of Andrea Camilleri. The protagonist is Commissario Salvo Montalbano, and the stories are set in the imaginary town of Vigata, Sicily. In 2012 the series generated a prequel, Il giovane Montalbano.
  • An Oriental Odyssey

    2018

    An Oriental Odyssey

    2018

    star 5.9
    Ye Yuanan is the daughter of the Assistant Minister of Revenue during the Tang Dynasty. Somewhat of an amateur sleuth, Yuanan loves solving mysteries and is constantly in competition with Zhao Lanzhi, a police officer who is trying to do his job. Yuanan has the assistance of Mu Le, a young man she took in as a family servant after saving him from danger. But what will Yuanan do when she discovers Mu Le’s true identity?
  • How It Really Happened

    2017

    How It Really Happened

    2017

    star 7.2
    Jesse L. Martin takes an in-depth look at some of the most notorious crimes, mysteries, trials and celebrity tragedies of our time.
  • Terror in Resonance

    2014

    Terror in Resonance

    2014

    star 7.8
    In an alternate version of the present, Tokyo has been decimated by a shocking terrorist attack, and the only hint to the identity of the culprit is a bizarre video uploaded to the internet. The police, baffled by this cryptic clue, are powerless to stop the paranoia spreading across the population. While the world searches for a criminal mastermind to blame for this tragedy, two mysterious children - children who shouldn't even exist - masterfully carry out their heinous plan. Cursed to walk through this world with the names Nine and Twelve, the two combine to form "Sphinx," a clandestine entity determine to wake the people from their slumber - and pull the trigger on this world.
  • Sherlock Holmes

    1954

    Sherlock Holmes

    1954

    star 7.2
    The first American television series of Sherlock Holmes adventures aired in syndication in the fall of 1954. The 39 half-hour mostly original stories were produced by Sheldon Reynolds and filmed in France by Guild Films, starring Ronald Howard as Holmes and Howard Marion Crawford as Watson. Archie Duncan appeared in many episodes as Inspector Lestrade. Richard Larke, billed as Kenneth Richards, played Sgt. Wilkins in about fifteen episodes. The series' associate producer, Nicole Milinaire, was one of the first women to attain a senior production role in a television series.
  • Expedition X

    2020

    Expedition X

    2020

    star 8.2
    Whether trekking through the remote jungles of Cambodia in search of a legendary ape-man or exploring the secrets of the world’s largest cave system right here in the United States, the Expedition X team is taking viewers to the stranger side of the unknown.
  • Just Add Magic

    2016

    Just Add Magic

    2016

    star 7.7
    Kelly Quinn and her two BFF's, Darbie and Hannah, stumble upon her grandmother's mysterious cookbook in the attic and discover some far from ordinary recipes. When the Shut'em Up Shortcake silences Kelly's pesky little brother and the Healing Hazelnut Tart heals Darbie's ankle, the girls discover they have the power of magic.
  • Creeped Out

    2017

    Creeped Out

    2017

    star 7.2
    A masked figure known as "The Curious" collects tales of dark magic, otherworldly encounters and twisted technology in this kids anthology series.
  • Beyond Evil

    2021

    Beyond Evil

    2021

    star 8.5
    As a killing resembling a cold case resurfaces in a small town, the chase for the truth falls on two policemen who each harbor secrets of their own.
  • Wallander

    2008

    Wallander

    2008

    star 7.4
    This drama follows Inspector Kurt Wallander – a middle-aged everyman – as he struggles against a rising tide of violence in the apparently sleepy backwaters in and around Ystad in Skane, southern Sweden. Based on the international best-selling books by Henning Mankell.
  • The Tunnel

    2013

    The Tunnel

    2013

    star 7.5
    The plot follows detectives Karl Roebuck and Elise Wasserman working together to find a serial killer who left the upper-half body of a French politician and the lower-half of a British prostitute in the Channel Tunnel, at the midpoint between France and the UK. They later learn that the killer—who comes to be nicknamed the "Truth Terrorist"—is on a moral crusade to highlight many social problems, terrorising both countries in the process
  • «
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • .....
  • 20
  • »
  • Follow us here

    X Facebook YouTube
    HomeAboutPrivacy PolicyContact
    Copyright © 2026 Series to Watch.