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The Baltimore Sun

'Dexter' (Showtime)

Premieres: Sunday, Sept. 27 Expect to See: New daddy Dexter ( Michael C. Hall) will be facing a foe who has very much the same mind-set, since John Lithgow's character also has a dual life, keeping his own serial killer practices secret -- and murdering in threes, giving him a reputation as "The Trinity Killer." Related: Zap2it's Fall TV Preview 'Dexter' season four preview: Fatherhood's a killer 'Dexter' family pictures from season four Showtime