The Dexter Season 4 trailer is here! So what's up with pay-cable's most beloved serial killer, anyway? For one thing, he's a daddy now. --- For another, he has a new nemesis in John Lithgow, who looks to be as ruthless as Season 1's Ice Truck Killer was maticulous. And Deb's still clueless--but at least the hair's grown out a bit.
The new season begins Sunday, Sept. 27 on Showtime; here's a taste now: