Sgt. Doakes Remains Convinced That Dexter (TV Series 2007) Has Something Sinister To Hide. His Sister Debra Has Moved Into His Apartment, Unable To Get Over The Pain Of Nearly Being Murdered. The Bay Harbor Butcher Is Hunted In The Second Season Of This Addictive Drama. Meanwhile, Rita Suspects Dexter (TV Series 2007) Has A Drug Problem, Doakes  Heads A Murder Investigation Involving A Military Special-ops Ranger, And A Copycat Killer Emerges.