Stardate not given: During an
informal home-cooked dinner held by Sisko for the senior staff, Dax picks up a musical instrument of Jake's and begins to pick out, seemingly at
random, a tune which she becomes preoccupied with,
and it follows her into some disturbing
hallucinations of masked figures. A medical checkup
reveals some deficiencies in the chemical links
between Jadzia and the Dax symbiont, necessitating a
trip to the specialized medical facilities on the
Trill planet. Though she shows favorable response to
her initial treatments, Dax goes into shock when the
computer aboard the Defiant displays a picture of the Trill
composer of the song that has been on her mind. Sisko
and Bashir try
to seek out the mysterious link with the long-dead
musician and Dax only to have all the official
channels closed in their faces to protect a
devastating secret, the cost of which will be
Jadzia's life.
