Carey Mulligan heads a starry cast in this tense four-part thriller.

It’s been a while since we’ve seen Carey Mulligan on our TV screens but the Hollywood star is back with a bang in this stylish and ambitious thriller.

This week’s opening episode begins with no-nonsense detective Kip Glaspie (Mulligan) investigating the mysterious murder of a pizza delivery driver on the streets of London, but soon ripples out to introduce myriad characters from all over society.

With an impressive supporting cast including Nicola Walker, John Simm and Billie Piper all shining, this is more than just a standard police procedural, as the sweeping long take in which Kip first arrives on the crime scene demonstrates.