On this Sunday's episode of Dexter Season 8, the doctor will be in... trouble.

Following a premiere that introduced viewers to Evelyn Vogel, we'll learn a great deal more about the supposed Psychopath Whisperer on "Every Silver Lining," including her connection to Dexter and why she may now be in need of his help.

Hint: it has something to do with a brain in a jar. Watch this clip from the upcoming episode for more:

Deb, meanwhile, will continue down her spiral, having to explain to her new boss just how she got so mixed up in the Briggs case.

Was she intimate with him? To what end? Check out a second sneak peek below and visit TV Fanatic the moment this episode concludes for my detailed review:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.