Lumen Pierce appears during a season.
The fifth season of Dexter premiered on September 26 , 2010 , and consisted of 12 episodes . Lumen Pierce . Lumen is introduced in the third episode ( `` Practically Perfect '' ) as a survivor of rapist-serial killer Boyd Fowler . In season 5 , episode 5 , `` First Blood '' , Lumen is revealed to have been beaten and gang raped by a group of men , including Boyd Fowler .