The Hand That Rocks the Cradle (1992)

IMDB
Genre : Drama, Thriller
TRAILER
Director : Curtis Hanson
Stars : Annabella Sciorra, Rebecca De Mornay, Matt McCoy, Ernie Hudson
Plot : After her sex offender husband gets caught in the act and kills himself, an embittered pregnant widow loses her child, and embarks on a mission of vengeance against one of her husband's victims and the woman's family.