Synopsis
Every action causes a reaction. Newton's 3rd law does not only explain the relationship between bodies and "momentum" in classical mechanics, but also human relationships and the "momentum" that characterizes them, in general. Relationships with others and with ourselves. The relationship between the present and the past. The relationship between the perpetrator and the victim. Family dramas, love affairs of loyalty and infidelity, serial killers, crimes of honor, passion, revenge, punishment, necessity.
Episodes
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Detective Inspector Max Arnold lives on a battered houseboat at the end of Cheyne Walk after separating from his art dealer wife Astrid. The son of a local bookshop owner, Max is a far cry from the affluent elite whose crimes he'll help solve along with D.C. Priya Shamsie.
The Chelsea Detective

After a murder shatters the lives of three best friends, their decades-long bond is tested when an investigation reveals betrayals and shocking truths.
Imperfect Women

Morfa Halen is a tight-knit Welsh town precariously nestled between towering mountains and a fast-encroaching sea that threatens its very existence. As a once-in-a-generation storm begins to gather far out at sea, former detective turned teacher Jackie Ellis discovers the body of her 8-year-old pupil, Cefin, seemingly drowned. The discovery sends shockwaves through the community, reviving the ghost of an unsolved cold case that rocked the town three years prior - the disappearance of Jackie’s niece, Nessa, which cost her career.
Under Salt Marsh

Syd Burnett has left her complicated past behind to become an LAPD detective. Paired with a new partner, Nancy McKenna, a working mom with an equally complex past, Syd is pushed to examine whether her unapologetic lifestyle might be masking a greater personal secret. These two women don't agree on much, but they find common ground when it comes to taking on the most dangerous criminals in Los Angeles.
L.A.'s Finest

The hunt to catch the killer of three young women in the Port Talbot area in 1973 and the remarkable story of how - in the first case of its kind - the mystery was solved almost 30 years later using pioneering DNA evidence. Contrasting the policing methods of the 1970s with the forensic breakthroughs of the early 2000s, the series portrays a town dealing with the repercussions of an unsolved case three decades on, and asks if justice can ever truly be found.
Steeltown Murders

When an unidentified body is found in a luxury apartment linked to Oliver Kennedy and his girlfriend Ciara Wyse, Detectives Lee Reardon and Karl Connolly reconstruct the couple's deadly romance across the past 56 days.
56 Days

Alex Cross is a brilliant but flawed homicide detective and full of contradictions. A doting father and family man, Cross is single-minded to the point of obsession when he hunts killers. He is desperate for love, but his wife’s murder has left him too damaged to receive it.
Cross

Thriller series which tracks five 24-hour periods in a police investigation.
Five Days

Zen is a British television mini series produced by Left Bank Pictures for the BBC, co-produced with WGBH Boston for its Masterpiece anthology series, Mediaset and ZDF. It stars Rufus Sewell and Caterina Murino and is based on the Aurelio Zen detective novels by Michael Dibdin. The series was filmed on location in Italy, but the dialogue is in English. The series, which comprises three 90-minute films, was broadcast in the United Kingdom on Sunday evenings from 2 January 2011 on BBC One. The three films were based on the books Vendetta, Cabal and Ratking.
Zen

Set in a dystopian America ruled by a totalitarian political party, the series follows several seemingly unrelated characters living in a small city. Tying them all together is a mysterious savior who’s impeccably equipped for everything the night throws at them. As the clock winds down with their fates hanging in the balance, each character is forced to reckon with their pasts as they discover how far they will go to survive the night.
The Purge

In the fictional Yorkshire town of Wetherton, the unlikely duo of politically incorrect elephant-in-a-China-shop-copper DS Andrew Dalziel (pronounced Dee-ell) and his more sensitive and university educated sidekick DS, later DI, Peter Pascoe is always on hand to solve the classic murder mystery, while maintaining down-to-Earth wit and humour.
Dalziel and Pascoe

The black sheep of the Argyll family, Jack Argyll, was accused of murdering their matriarch a year ago, but now a man shows up on their doorstep claiming Jack’s innocence. The family must come to terms with this news and the fact that the real killer might still be among them.
Ordeal by Innocence

Genius detective Nero Wolfe and his right-hand man, Archie Goodwin, solve seemingly impossible crimes.
A Nero Wolfe Mystery

Nothing is as it seems in this hilarious murder mystery where each suspect's story is told through a different film genre.
The Afterparty

Chief Inspector Armand Gamache and his team investigate a series of perplexing murders, in the seemingly idyllic village of Three Pines and uncover the buried secrets of its eccentric residents. In the process, Gamache is forced to confront buried secrets of his own. Based on the novels by Louise Penny.
Three Pines

Baretta is an American detective television series which ran on ABC from 1975 to 1978. The show was a milder version of a successful 1973–74 ABC series, Toma, starring Tony Musante as chameleon-like, real-life New Jersey police officer David Toma. While popular, Toma received intense criticism at the time for its realistic and frequent depiction of police and criminal violence. When Musante left the series after a single season, the concept was retooled as Baretta, with Robert Blake in the title role.
Baretta

Detective Inspector Ray Lennox investigates the disappearance of a schoolgirl while battling cocaine addiction and a mental breakdown.
Crime

With her son grown up, single mom Pearl Nolan decides to pursue her lifelong dream and launches a private detective agency, which she runs from her family's restaurant in the coastal town of Whitstable. Drawn by her caring nature, locals soon flock to her with all manner of cases. But when an old friend dies suspiciously, Pearl finds herself in conflict with gruff new cop in town, DCI Mike McGuire.
Whitstable Pearl

A war veteran turned private detective operates out of a tiny office in London’s Denmark Street. Although wounded both physically and psychologically, his unique insight and background as a military police investigator prove crucial in solving complex crimes that have baffled the police. Based on the bestselling novels written by J.K. Rowling under the pseudonym Robert Galbraith.
Strike

A detective team apply new techniques to old crimes as they solve cold cases.