A pizza delivery man is murdered in London — and the case soon leads a detective into a conspiracy involving drug dealers, smugglers and spies. Now streaming on Netflix, Collateral stars Carey Mulligan as DI Kip Glaspie, whose investigation grows more dangerous with every new discovery. In just four episodes, secrets keep surfacing, alliances shift, and almost nothing is what it first appears. A gripping British crime thriller praised for its sharp writing, standout performances and unexpected turns.

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‘Collateral’: The British Crime Drama on Netflix Winning Over Viewers

Collateral – fernsehserien.de

A murder investigation quickly becomes far more complicated than it first appears in Collateral, a four-part British crime drama that has been quietly attracting viewers on Netflix.

Originally broadcast on BBC Two in February 2018, the limited series was picked up by Netflix for a global release the following month. Created and written by David Hare and directed by SJ Clarkson, the drama combines a murder mystery with political intrigue, immigration issues and espionage.

At the centre of the story is Detective Inspector Kip Glaspie, played by three-time Academy Award nominee Carey Mulligan. Her investigation begins with the killing of a pizza delivery man in London, but the case soon leads into a much larger conspiracy involving drug dealers, smugglers and spies.

Still from Collateral

An impressive British cast

One of the drama’s biggest strengths is its ensemble cast.

Mulligan is joined by Billie Piper, whose performance earned her a BAFTA Television Award nomination for Best Supporting Actress. The cast also includes John Simm, Jeany Spark, Nicola Walker, Kim Medcalf, Nathaniel Martello-White, Nick Mohammed and Hayley Squires.

The performances have been widely praised, particularly Mulligan’s portrayal of Kip Glaspie. Rather than relying solely on familiar crime-drama conventions, the character brings compassion and intelligence to the investigation, giving the series a distinctive perspective.

Still from Collateral

More than a conventional crime thriller

While the murder remains at the heart of Collateral, the story expands into several interconnected issues as Glaspie digs deeper.

The series moves between crime, politics, immigration and murky espionage, gradually revealing how seemingly unrelated characters and events are connected. Its four-episode format also keeps the story focused while allowing the mystery to develop.

Critics have praised the show for combining thriller elements with police-procedural storytelling and political commentary, while also highlighting its carefully developed characters and strong performances.

Viewers say it gets better as it goes

Still from Collateral

Audience reactions have been similarly enthusiastic.

One viewer described the series as “simply brilliant,” praising its crisp dialogue, fast but controlled pacing and ability to avoid predictable character stereotypes. Another called it an intelligent and thought-provoking drama, while highlighting the performances, script, direction and cinematography.

Other viewers have singled out the production’s visual style and editing, saying the series remained gripping even with a somewhat slower pace than many contemporary thrillers.

The praise has also extended to its ensemble, with one viewer particularly impressed by the number of strong female performances throughout the miniseries.

With only four episodes, Collateral offers a compact mystery that steadily widens beyond its initial murder investigation. For viewers looking for a British crime drama with an acclaimed cast and a story that reaches into much deeper territory, the Netflix series may be an easy one to binge.