about Don Juan

the young man John R. deMarco, played by Johnny Depp, fell in love with a poster of a model wearing a black Don Juan mask. He tries to contact her, but she's not interested in him.
So he decides to become Don Juan, based on the novel of Lord Byron, he once read.
After he tries to do the last step with killing himself (or more awaiting to be killed by another Don whatever), Dr. Mickler can "rescue" him from the roof of a house and takes Don Juan under psychiatric treatment, to cure Don Juan. But the sessions don't cure Don Juan, more, Dr. Mickler believes him in a special way...following Don Juan's tips and so making his own marriage more worth living for.

Although everything is obviously just a story of John R. deMarco, we fall in love with his dreams, being the world's greatest lover, and having loved 1502 women.