At Deep Space Nine, a space station located next to a wormhole in the vicinity of the liberated planet of Bajor, Commander Sisko and crew welcome alien visitors, root out evildoers and solve all types of unexpected problems that come their way.

Frankie is a psychopath who drags along problems with his mother. To compensate these problems he follows and persecutes Madeleine and some of her friends killing one girl after the other and also everybody who would stand in his way - without any reason or comparison.