Flynn Carson (Noah Wyle), who has been drifting overseas for many years, returned to the Metropolitan Library of New York. He planned to resume his previous job and settle down. However, a strange dream made his idea fall through, and he was led to New Orleans. There, he was involved in the huge conspiracy of the notorious vampire prince Vlad Dracul. Flynn must, as before, overcome his fear and protect the legendary artifact - the Holy Grail in "The Last Supper". Jonathan Frakes will continue to play Judson, the former librarian and now the director. Judson, who was a Marine, is a good fighter. Jane Curtin will also follow her role in the previous film - Charlene - a fussy, serious, mean, and personal manager without any personal feelings. Stana Katic, an actress in "Heroes", plays the heroine of the third part. Her latest movie role is Simone Renoir, a singer in a jazz club in New Orleans. Her hypnotic performance soon makes the playboy Flynn feel intoxicated. In fact, her secret identity is the protector of the Holy Grail, and she will stop at nothing to prevent others from getting the whereabouts of the Holy Grail. In addition, she has another identity - 400 years ago, the vampire prince Vlad Dracula turned her into a vampire (sigh, vampire again), and she has been searching for the demon who stole her soul and made her walk in the dark. Of course, Flynn is willing to help her... A journey of love and hate begins...