We found 46 mystery TV shows streaming on 9Now in Australia as of October 2026. These are the best of them, ranked by IMDb score, plus the newest additions.
8.6Agatha Christie's Poirot
8.4Veronica Mars
8.3The Originals
8.2The First 48
8.2Expedition Unknown
8.111.22.63
8.1Underbelly
7.9Upload
7.9Midsomer Murders
7.9Grantchester
7.9New Tricks
7.9The Brokenwood Mysteries
7.8Gotham
7.8The Closer
7.8Death in Paradise
7.8Evil
7.8Agatha Christie's Marple
7.8Informer
7.7The Vampire Diaries
7.7Prodigal Son
IMDb 8.61989 · 13 seasons
From England to Egypt, accompanied by his elegant and trustworthy sidekicks, the intelligent yet eccentrically-refined Belgian detective Hercule Poirot pits his wits against a collection of first class deceptions.
Where to watch Agatha Christie's PoirotIMDb 8.42004-2019 · 4 seasons
In the fictional town of Neptune, California, student Veronica Mars progresses from high school to college while moonlighting as a private investigator under the tutelage of her detective father.
Where to watch Veronica MarsIMDb 8.32013-2018 · 5 seasons
A spin-off from The Vampire Diaries and set in New Orleans, The Originals centers on the Mikaelson siblings, otherwise known as the world's original vampires: Klaus, Elijah, and Rebekah. Now Klaus must take down his protégé, Marcel, who is now in charge of New Orleans, in order to re-take his city, as he originally...
Where to watch The OriginalsIMDb 8.22004- · 19 seasons
Detectives in major cities in the United States race against the clock in the wake of homicides, knowing that if they don't find a lead within the first 48 hours, their chances of solving a case are cut in half.
Where to watch The First 48IMDb 8.22015- · 17 seasons
The adventures of Josh Gates as he investigates unsolved iconic stories across the globe.
Where to watch Expedition Unknown
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