Dexter has finally been caught and brought to justice - for three murders he didn't commit. Proving his innocence is made quite difficult by the fact that the true killer, Robert Chase, is one of the 'victims' he's accused of murdering. To make matters worse, Dexter's once loyal sister Deborah disowns him and adamantly refuses to help with his investigation. Furious but undeterred, Dexter connects Chase to a resort with a dark underbelly. When the resort becomes aware of his discoveries, children of the police force begin disappearing. Deborah is made lead investigating officer and still refuses to return to Dexter. However, when the kidnappers take both Dexter's and her own children, she has no option but to beg for his help. Dexter triumphantly agrees, and the hunt begins.