Watch a Full Trailer for Season 7 of Dexter

Season seven of Dexter is bearing down on us, and fans haven’t been sure what to expect from the series’ forthcoming penultimate season. A teaser released in June hinted that Deb will discover her brother’s bad habit of murdering people, but the scant 40-second preview certainly didn’t make anything clear.

Spoiler Alert

Well, now it’s clear. A full trailer was recently released that not only confirms that Deb will indeed be roped in to Dexter’s ring of secrecy, but actually shows the scene where she walks in on a murder in progress. Dexter subsequently convinces Deb to help dispose of the body and keep her mouth shut… at least for the time being. The trailer ends with a silhouetted, knife-bearing Dexter ominously growling, “The only thing worse than not knowing what she’ll do, is not knowing what I’ll do.”

Strap in and check out the trailer for yourself below. Season seven is set to premiere Sept. 30 on Showtime.

Got news tips for Paste? Email news@pastemagazine.com.