Quote Originally Posted by hiddenwave View Post
I Don't remember actress or anything , i just remember bit of plot
"Woman cheats with a man who looks like husband...and then realizes its not him ultimately being stalked by him in the movie..." Later he pretends to be her husband (they really look like twins) and fakes it and etc

Sounds like Echo (1997)

https://en.wikipedia.org/wiki/Echo_(1997_film)