Lumen Pierce appears on the TV show Dexter.
The fifth season of Dexter premiered on September 26 , 2010 , and consisted of 12 episodes . Lumen Pierce . She remains for the rest of the season , and leaves following the season 5 finale , `` The Big One '' . `` The Big One '' is the fifth season finale of the American television drama series Dexter , and the 60th overall episode of the show .