Dexter exec Scott Buck recently confirmed that the Showtime drama's latest run will pick up where season six left off, with Deb (Jennifer Carpenter) having discovered Dexter (Michael C Hall) committing a murder.
In the new teaser - titled 'Truth Brings Light' - specially-shot new footage of the pair is accompanied by a voiceover from Dexter, who can be heard saying, "Everything in my life has brought me to this point. It's what I am, it's all I am. I can accept that… but can she?"
Deb can also be heard urging her adopted brother, "Get away from the body!"
Yvonne Strahovski (Chuck), Jason Gedrick (Luck), Ray Stevenson (Rome) and Matt Gerald (Avatar) have all signed up for roles in the new season of Dexter.
The series returns to Showtime on Sunday, September 30 at 9/8c. In the UK, Dexter airs on FX.
> Dexter casts Katia Winter in seventh season
Watch Dexter star Jennifer Carpenter talk to Digital Spy below: