My intended (and too long) title for this question was:
“Action-thriller about two guys, one of which seemingly falls to his death in a building but years later he returns, calling himself “the Chameleon” and he wants to exact vengeance on his friend for something”
Release date: 1995-2005.
It was a feature film, not an episode of a series.
It could be that both of them are cops.
I think the guy (seemingly) dies because somehow he ended up hanging from some high place within a building and his friend fails to save him in time or he’s just not strong enough to pull him up.
This failure could be the cause of the vengeance plot that follows.
I think at one point the (seemingly) dead guy calls his friend on the phone and that’s when he introduces himself as the Chameleon.
There is no supernatural element in the movie as far as I know.
It’s not:
The Chameleon Killer (2003).
McBride: The Chameleon Murder (2005).
War (2007).
The Chameleon Killer 2: Silent Vengeance (2011).
Thriller (2018).
It’s not about Elaine Parent or Terry Peder Rasmussen, who were real life criminals.
Jason Statham is not in it.