Bad Seed (2000)

IMDB
Genre : Mystery / Thriller
TRAILER
Director : Jon Bokenkamp
Stars : Luke Wilson, Norman Reedus, Dennis Farina, Mili Avital
Plot : Preston Tylk is an ordinary guy living in Seattle. When he discovers that his wife, Emily, whom he adores, is having an affair, he is devastated. Storming out of the house, he returns later only to find her brutally murdered.