Very intense, very exciting, and almost sickeningly suspenseful.  This movie has been made fun of and spoofed for a while now, but the original still never fails to entertain.  Glenn Close as Alex Forrest is one deranged bitch, and the cycle of liking her, sympathizing with her, cowering away from her, and ultimately wanting to strangle her is a journey taken by both the audience and by Michael Douglas's character.  I enjoyed it, even if it got a bit too dramatic and overblown toward the end.  That roller coaster thing was pretty stupid.