- Investigation into the 'Bay Harbor Butcher' (aka Dexter) begins
- Special Agent Lundy from the FBI takes the lead
- Little Chino kills a little girl's mother, so Dexter tries to kill him again and succeeds
- Rita gives Paul a proper funeral
- Rita confronts Dexter about Paul's death; Dexter gets out of it by 'admitting' that he, himself, is also a drug addict
- Deb, still freaked out, meets a cute guy at the gym and pulls a gun on a kid vandal
- Lt. Pasquale is having personal issues with her fiance
- Dexter says goodbye to his brother (aka The Ice Truck Killer)