Attorney Phillip Reed is tired of one night stands. He then meets a woman at the zoo, Gloria Franklin who is getting married in 2 weeks. When she meets Phillip, she lies to him and tells him that her name is Marsha Lyons. The two hit it off right away and Gloria/Marsha tells him she'll call him. Gloria/Marsha doesn't ever plan on ever calling him. But Gloria/Marsha is enraged that her fiancé is cheating on her, so she decides to call Phillip and invites him to go to Acapulco, Mexico with her for the weekend and the two have an adventure getting there when the car they rented breaks down and catches on fire. Then they hitch a ride with some local farm workers. Finally, they make it to a beautiful home that is owned by Gloria/Marsha's parents. They have a blast in Acapulco, dining and dancing, eventually winding up in bed together. The next morning, Phillip gets up looking for Gloria/Marsha who has already left. Phillip finds out via a video tape explanation left by Gloria/Marsha that she's getting married next week and that he was supposed to be her last fling. Phillip then tries to find her. When he finally does, he tries to stop the wedding and convince Gloria that they belong together. In the end, Gloria leaves her unfaithful fiancé at the altar and she and Phillip go for a walk in the zoo where they first met.
Gloria's fiance Jason is going out with some friends to sow his last wild oats. She considers this a bit barbaric, so on the advice of some friends she goes out to do the same thing. She meets Phillip, a man who's tired of one-night stands and wants a serious monogamous relationship. When they meet he is taken with her right away, but she doesn't give him her real name. So, after spending the night together, she leaves him a video saying that she is engaged and that this was supposed to be her last fling. But he loves her and he knows that she feels the same way, so he tries to find her before she gets married.