Kawsar11499 | Points

Thanks thats the one

Nah I don't think thats it, in the movie you only find out in the end he has been keeping the murderer captive.

Foreign non english movie where a mans wife is murdered and the killer is not convicted. At the end it is revealed that the man has held the killer captive and imprisoned in his second house as punishment...

"Femme Fatale" (2002) https://www.imdb.com/title/tt0280665/ If you think that this is the movie you are looking for, then please select my answer as Best Answer by clicking on the "Select" button.