S5:E1 My Bad
Original Air Date: Sep 26, 2010
In the Season 5 premiere, Dexter reels from Rita's murder and makes a choice that will affect everyone's lives; Quinn stirs up trouble by suggesting that Rita's death doesn't fit Trinity's profile and offers much-needed support to Debra.
"This is a wonderfully dark episode of television, maybe the best start to a season of Dexter since the pilot."
READ MORE AT The A.V. Club
"Unlike the other major players in this golden age of television, Dexter isn't sophisticated in a showy way. "
READ MORE AT Vulture