Fatal Attraction is a 1987 thriller about a married man who has a weekend affair with a woman who refuses to allow it to end and who becomes obsessed with him.
plot
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Dan Gallagher is a successful, happily married New York attorney living in Manhattan when he meets Alex Forrest, an editor from a publishing company, through business. While his wife and his daughter are out of town for the weekend, Dan has a brief affair with Alex. What Dan thought would be a simple fling turns into a dangerous sequence of events when Alex begins to cling to him obsessively.
Alex Forrest's mental instability initially surfaces when she attempts suicide after Dan explains to her that he must go home and get on with his life. Dan thinks the affair is forgotten, but Alex begins to show up at various places to see him....etc etc
http://www.youtube.com/watch?v=IYpeKbHKVbU