The Doctor is a Time Lord: a 900 year old alien with 2 hearts, part of a gifted civilization who mastered time travel. The Doctor saves planets for a living—more of a hobby actually, and the Doctor's very, very good at it.

Deformed since birth, a bitter man known only as The Phantom lives in the sewers underneath the Paris Opera House. He falls in love with the obscure chorus singer Christine, and privately tutors her while terrorizing the rest of the crew.