This 1987 film by director Adrian Lyne (1941–) was seen by some social critics as a warning about the dangers of adultery. Others called it an example of a backlash against feminism. Still others saw it simply as a first-class thriller.

Michael Douglas (1944–) plays Dan Gallagher, a lawyer whose work brings him into contact with wealthy, beautiful Alex Forrest (played by Glenn Close, 1947–, in a departure from her usual role of nurturing mother figure). The two are instantly attracted to one another. Although Gallagher is married, and Alex knows it, the two engage in a brief, passionate affair.

When Gallagher tries to end the encounter (as both of them had agreed), Alex becomes enraged, showing herself to be mentally unstable. She tells Gallagher that the affair is not over, and his going back to his wife and daughter will not make any difference to her.

Alex begins stalking...