Dexter": Season 4 Episode 10"

So, after a string of good but pokey mid-season episodes — doo-de-doo, Dexter spies on Trinity, dum-de-dum, Dexter raises kids… Season Four delivers back-to-back kickass thrillers, the kind where your unattended beer goes flat in your hand. The pressure-cooker tensions of Nov. 21’s Thanksgiving episode “Hungry Man” practically explode with this week’s “Lost Boys.”

The previous episodes revealed the extent to which Dexter was duped by Trinity’s public camouflage. Turns out that Dexter's much better at compartmentalization and feigned normalcy than America's most successful serial killer, Arthur Mitchell (John Lithgow). Instead of being a superkiller with ice water in his veins, Arthur can barely keep it together. He may even have killed himself a few weeks ago on "Road Kill," had Dexter not intervened. Thanksgiving dinner revealed Arthur not as a loving family man but a mercurial tyrant whose behavior has warped the personalities of his wife and children. We also learned that he's got more children than we realized.