| Episode cast overview, first billed only: | |||
| Michael C. Hall | ... | Dexter Morgan | |
| Julie Benz | ... | Rita Bennett | |
| Jennifer Carpenter | ... | Debra Morgan | |
| Erik King | ... | Sgt. James Doakes | |
| Luna Lauren Velez | ... | Lt. Maria LaGuerta (as Lauren Velez) | |
| David Zayas | ... | Det. Angel Batista | |
| James Remar | ... | Harry Morgan | |
| C.S. Lee | ... | Vince Masuka | |
| Christian Camargo | ... | Rudy Cooper | |
| Mark Pellegrino | ... | Paul Bennett | |
| Dominic Janes | ... | Young Dexter | |
| Dakin Matthews | ... | Dr. Pittman | |
| Joseph Lyle Taylor | ... | Sgt. McKay | |
| Jeanette Miller | ... | Elderly Neighbor | |
| Christina Robinson | ... | Astor Bennett | |
Dexter learns that his biological father, Joe Driscoll, who he thought had been long dead, has only recently died and has left all of his belongings to Dexter, including his house. Dexter travels to the house with Rita. Debra and Rudy arrive there later (following Rudy's advice) to assist him in cleaning out the house. Dexter suspects Joe Driscoll's death to be murder. Flashbacks to Dexter's childhood show his questioning his foster father Harry (James Remar) about his real parents, and Dexter finds that Mr. Driscoll donated some of his blood to the young Dexter for surgery. In the last scene, one of Joe's neighbors, an elderly woman, recognizes Rudy as a cable repairman, who happened to be Joe's last visitor before his death; after Dexter, Rita, Debra and Rudy had left the premises, Rudy is shown returning to the elderly woman's house dressed as the cable repairman again. Meanwhile, Paul begins to slide back into his old abusive habits when Rita attempts to prevent him from seeing ...
Dexter inherits a house from a man called Joe Driscoll, who claimed to be his biological father and apparently died from heart attack. Dexter travels with Rita to pack and clear the house for selling. Later, Debra and Rudy unexpectedly show up to help them. Dexter investigates the death of Joe in the morgue and with his neighbor and finds evidences that he might have been killed. Meanwhile Sergeant Doakes shoots and kills a man in Miami and Angel is requested by the Internal Affairs to testify; but what Angel has witnessed and Dexter's report about the blood splatter contradict the statement of Doakes. Angel lives a dilemma with his conscience and principles whether he should tell the truth of become a rat. Paul presses Rita to visit his children and is brutal with her.
In this episode, Dexter discloses the truth about his origins and realizes that Harry lied to him. The Ice Truck Killer now close to Dexter and Debra is able to manipulate Dexter and get inside information about his past that he will certainly use in the future. The poor Angel lives a great dilemma with the situation with Doakes while the mask of Paul falls. The taste of music of Joe Driscoll could not be better. My vote is eight.
Title (Brazil): "Papai Sabe o Que é Melhor" ("Father Knows What is Best")