S01E07: Identical Problem/Julie's Old Flame/The Jinx

Synopsis

Identical twins pretend to be one person in order to take the cruise on one fare. They leave Doc completely bewildered. Julie gets re-acquainted with an ex-lover, who claims to have broken things off with his wife. After suffering a series of accidents, the crew comes to believe that an elderly couple--which survived the Titanic--is cursed.