Infernal Affairs II 無間道II (2003): The Prequel That Gave Us the Origin of Evil — and the Most Tragic Character in the Trilogy

One Sentence

The prequel to the greatest Hong Kong crime film ever made — and a tragedy that makes the original even more heartbreaking.

What Is It About?

The year is 1991. Hong Kong is still British. The triads are in control. And two young men are about to enter a world they will never escape.

Chen Wing-yan (Shawn Yue) is the illegitimate son of triad boss Ngai Kun. He wants to be a cop. He's forced to become a mole.

Lau Kin-ming (Edison Chen) is a young gangster with a crush on his boss's wife. He's sent to the police academy to spy on the police.

Both are pawns. Both are trapped. Both will spend the rest of their lives pretending to be someone they're not.

Meanwhile, the real drama unfolds around them.

Ngai Wing-hau (Francis Ng) is the quiet accountant who becomes the head of the Ngai family after his father is assassinated. He's not a fighter. He's a strategist. He doesn't kill with his hands — he kills with his mind.

Hon Sam (Eric Tsang) is a mid-level triad boss who believes in loyalty — until the Ngai family betrays him. His transformation is the film's darkest arc.

Superintendent Wong (Anthony Wong) is the cop who will do anything to bring down the triads. He's not corrupt. He's just willing to cross lines.

Mary (Carina Lau) is Sam's wife. She's the one who ordered the assassination of Ngai Kun. She's the reason everything happens.

The Structure: A Hong Kong Godfather

The film is structured like The Godfather Part II — a prequel that gives us the backstory of the characters we already know.

But Infernal Affairs II is also its own story. A story about how loyalty is destroyed. How trust is betrayed. How people become the villains they once hated.

The film covers three years: 1991, 1995, and 1997 — the year Hong Kong was handed back to China. The political backdrop is not accidental. The film is about identity, about belonging, about people caught between two worlds.

The Scene That Haunts You

There is a scene in the film that stays with you.

Ngai Wing-hau has just discovered that Hon Sam's wife, Mary, ordered the murder of his father. He doesn't react. He doesn't shout. He just sits there, silent.

Then he orders her execution.

Mary is killed in a car accident. It's staged. It's cruel. It's the moment Sam loses everything he loved — and becomes the monster we see in the first film.

The Cast That Elevates Everything

• Francis Ng as Ngai Wing-hau — quiet, calculating, and heartbreakingly human. He's the heart of the film. He doesn't want power. He's just trying to protect his family. By the end, he's lost everything — including his life.

• Carina Lau as Mary — smart, ruthless, and loyal. She's the reason Sam becomes who he is. Her death is the turning point.

• Eric Tsang as Hon Sam — the loyal lieutenant who becomes the ruthless boss. His transformation is brutal.

• Anthony Wong as Superintendent Wong — the cop who will do whatever it takes.

• Edison Chen and Shawn Yue as the young moles — their performances set up the tragedy.

Why It Matters

Infernal Affairs II is not just a prequel. It's a tragedy that makes the original film even more devastating.

It gives us context. It gives us backstory. It gives us the origins of the characters we already know — and makes us understand why they are the way they are.

The film also stands on its own. You don't need to have seen the first film to appreciate it. It's a self-contained crime drama about loyalty, betrayal, and the cost of power.

The Box Office and Awards

Infernal Affairs II was released on October 1, 2003. It grossed HK$24.9 million at the box office.

It received critical acclaim and was nominated for Best Film at the 23rd Hong Kong Film Awards.

Final Thought

Infernal Affairs II is not a sequel. It's a companion piece. A film that makes the original better. A film that gives you the missing pieces.

And it's a film that proves the Infernal Affairs trilogy is not just about crime. It's about family. About identity. About the choices we make — and the ones we can't avoid.

Please enjoy this short film

If you can't watch it, please click here to go to YouTube.

Have you seen Infernal Affairs II? Who's your favorite character — Ngai Wing-hau, Hon Sam, or young Chen Wing-yan? Let me know in the comments.

Tom De · The Movie Prince 🎬