It only takes mere seconds for Stan's Gangs of London to have viewers on the edge of their seats.
The new 10-part crime drama series, which is available to watch on Stan, opens on top of a skyscraper above London. A man, who we later learn to be Sean Wallace (Peaky Blinders' Joe Cole), is staring down at a man dangling precariously on a rope from the building.
As the bloodied man screams and scrambles for help, Sean kneels down and sets the rope alight, sending the unknown man hurtling to the ground in flames.
It's a scene that ultimately sets the dark and grisly tone for the nine episodes to come. This isn't a series for the faint-hearted.
Watch the trailer for Stan's Gangs of London below. Post continues after video.
Co-written by Gareth Evans and Matt Flannery, who worked on a number of Indonesian martial arts films, Gangs of London takes viewers on an immersive trip into the darkest corners of London.
The series kicks off when the head of London's most powerful crime family, Finn Wallace (Star Trek: Deep Space Nine's Colm Meaney), is assassinated through a peephole in a dilapidated council apartment building.
The hitman, a young man named Darren, appears to be part of a gang of Travellers. He was sent to kill Finn with a silver revolver and three bullets under that pretense that he was killing a pedophile.
But as it unfolds in the premiere episode, it's unclear who orchestrated the hit.
After ruling London's criminal underworld for two decades, Finn's empire is worth billions. As a result, his sudden death sends shock waves through London's criminal underground.
Following Finn's death, a sudden power vacuum opens up as Finn's rivals battle to take over his territory in London.
But before they can even think about taking over, Finn's son, Sean Wallace, takes over his father's top place in the intricate web of London gangs.
While Finn's right-hand man, Ed Dumani (Game of Thrones' Lucian Msamati) declares that business will commence as usual, Sean, who is known for his volatile and impulsive nature, declares that business will be halted until his father's killer is found.
He wants retribution – and he wants it fast.