Move Over Unforgotten: Nicola Walker’s River Is the Detective Drama You Can’t Stop Watching

Sometimes a television series grabs you by the throat and refuses to let go. For fans of British crime drama, Nicola Walker’s River is precisely that kind of show. While many know Walker for her acclaimed role in Unforgotten, River is a quietly brilliant series that first aired on BBC One in 2015 and is now available to stream on ITVX. And when we say you’ll want to binge it in one sitting, we mean it.

The series introduces audiences to Detective Inspector John River, played with remarkable intensity by Stellan Skarsgård, and his colleague Detective Sergeant Jackie “Stevie” Stevenson, portrayed by the ever-compelling Nicola Walker. But here’s the twist that makes River unlike any other detective drama: Stevie has been murdered, and yet River sees her everywhere. She’s not the only ghost haunting him; as he investigates her death, River is tormented by the apparitions of other victims connected to the cases he handles. This supernatural dimension blurs the line between reality and illusion, forcing River—and viewers—to question what is truly happening.

The premise alone sets River apart from conventional crime dramas. River is a detective grappling not only with the procedural elements of his work but also with profound grief and a fractured mental state. As the series progresses, the layers of John River’s character are peeled back, revealing a man whose brilliance is shadowed by trauma. His interactions with Stevie’s ghost are chilling, tender, and sometimes darkly humorous—a combination that keeps viewers glued to the screen.

Written by Abi Morgan, known for her work on The Split, River is a six-part series that balances the tension of a police procedural with the eerie qualities of a ghost story. As River unravels the mystery of Stevie’s death, secrets emerge that challenge everything he believed about her—and about himself. Each episode dives deeper into the psychology of both the living and the dead, blending suspense with emotional resonance in a way that few crime dramas achieve.

The supporting cast is equally impressive. Alongside Skarsgård and Walker, viewers are treated to standout performances from Adeel Akhtar as DS Ira King, Lesley Manville as DCI Chrissie Read, Georgina Rich as Rosa Fallows, and Eddie Marsan as Thomas Neill Cream. Turlough Convery, Sorcha Cusack, Steve Nicolson, Owen Teale, and Michael Maloney round out a stellar ensemble, each bringing depth and nuance to their roles. From the haunted detective to the chilling apparitions, every character adds to the series’ unsettling atmosphere, creating a world that feels simultaneously real and surreal.

Critics and fans alike have praised River for its originality and execution. The British drama has been described as “exceptionally engaging” and “the very best there is” when it comes to combining traditional crime-solving with psychological complexity. Skarsgård’s performance, in particular, has drawn acclaim for its depth and subtlety. He portrays a detective struggling with grief, guilt, and obsession in a way that is both haunting and relatable.

What sets River apart is its commitment to emotional realism amid the supernatural. Unlike many ghost stories that rely purely on jump scares or horror tropes, River uses the apparitions to explore human emotions—grief, loss, regret, and memory. These themes resonate strongly with viewers, making the series both thought-provoking and binge-worthy. Each ghostly encounter serves to peel back another layer of the central characters, revealing hidden truths and unresolved conflicts.

For those wondering where to start, the full six-part series is currently available to stream on ITVX. Watching it in one sitting is highly recommended, as the series’ intensity and emotional stakes build with each episode. From the first scene to the climactic finale, River keeps viewers questioning what is real and what exists only in the troubled mind of John River.

Fans of Nicola Walker will also want to explore her other acclaimed work. Unforgotten, in which she plays DCI Cassie Stuart, spans four series and is available to stream on ITVX. Additionally, The Split, following a family of divorce lawyers, showcases Walker’s talent in a completely different context but is equally gripping. Together, these series highlight why Walker remains one of Britain’s most compelling actors in the crime and drama genres.

Beyond the performances, River excels in its production values. The cinematography captures London in all its atmospheric glory, from foggy streets to dimly lit offices, enhancing the series’ eerie and suspenseful tone. The writing by Abi Morgan is taut, layered, and emotionally intelligent, blending the procedural elements of a detective story with the introspective depth of a character study.

Episodes often leave viewers on edge, not simply through plot twists but through the psychological tension that permeates the series. John River’s hallucinations, the moral ambiguities he faces, and the ethical dilemmas in police work all contribute to a gripping, intellectually engaging experience. The pacing is deliberate, allowing moments of reflection amidst the suspense, which makes the eventual climaxes all the more impactful.

In short, River is a detective drama that defies simple categorization. It’s a psychological thriller, a ghost story, and a crime procedural all rolled into one, and it works brilliantly. Viewers are drawn into the story not only by the mysteries themselves but by the emotional complexity of the characters and the moral questions they confront.

For anyone looking to immerse themselves in a series that is equal parts suspenseful and thought-provoking, River is an essential watch. Its blend of haunting visuals, strong performances, and intricate storytelling ensures that it stands out in the crowded landscape of British crime drama.

In an era where binge-watching is the norm, River provides exactly the kind of series you can—and will—watch in one go. Its six episodes deliver a complete, satisfying arc while leaving enough lingering questions and emotional resonance to stay with viewers long after the credits roll.

Whether you’re a longtime fan of British crime drama or a newcomer seeking a series that challenges conventions, River offers an unforgettable viewing experience. It’s a show that lingers in your mind, compelling you to reflect on the blurred lines between life and death, memory and reality, grief and obsession.

River is available to stream now on ITVX. If you haven’t yet watched it, prepare to be captivated by one of the most gripping and original detective dramas in recent memory.