In Miami, the orphan Dexter is raised by detective Harry Morgan, who discovers that his foster son has the urge to kill. Harry directs the impulse of the boy to kill bad people, teaching him how to operate without leaving any trace. After Harry's death, Dexter works in the forensic department of the Miami Police Department, where his step sister, Debra, works in the Vice and Narcotics Unit. During his free nights, Dexter leads a double-life, chasing and killing murderers and collecting samples of their blood, or dating Rita Bennett. After executing a pedophile and a rapist (who have killed their victims), Dexter investigates an intriguing serial killer that drains the blood and freezes the severed bodies of his victims. Written by Claudio Carvalho, Rio de Janeiro, Brazil

Dexter's world of police analyst by day, and serial killer by night, is rocked when he's privately contacted by another serial killer, whom the department is investigating, who claims that the killer knows about Dexter's double life. Meanwhile, Dexter's sister, Debra begins investigating the mysterious killings with Dexter's help, but who lets her take the credit. She then finds a stolen refrigerated truck which contains a gruesome message. Dexter also begins stalking his next victim, a wealthy businessman who gets acquitted of a drunk driving charge. Elsewhere, Sgt. Doakes investigates the murder of an undercover vice cop whom was investigating a powerful drug cartel leader, named Carlos Guerrero, while Lt. Laguerta also learns that Doakes was secretly involved with the murder victim's wife. Also, an unsure Rita tries to try out intimacy with Dexter after they have a get together with Debra and her blind date. Written by Anonymous

After the dead body of another of victim of the so-called Ice Truck Killer is found on the ice rink at Miami's Hockey Dome, Dexter helps out Debra, newly transfered to the homicide squad to investigate when Lt. Laguerta, ambitious for a promotion and the media spotlight, decides to have the department pursue a security guard whom they believe is the Ice Truck Killer. Meanwhile, Rita receives an unpleasant visit from her imprisoned ex-husband's drug dealer who confiscates her car, leading Dexter to drive her to and from her hotel receptionist job, while at the same time, Dexter zeros in on his next victim, a recently paroled teenage murderer who harbors some dark secrets of his own. Dexter also flashes back to committing his first killing: a nurse who he suspected was poisoning his terminally sick stepfather. Elsewhere, Sgt. Doakes continues to hound the drug kingpin Carlos Guerrero, but gets in over his head when a group of dirty cops decide to take matters involving Guerrero into ... Written by Anonymous

The mysterious Ice Truck Killer escalates his killing spree by leaving body parts of his latest victim at sites that relate to memories from Dexter's childhood, leading Dexter to confront his dark personal history. As Halloween approaches, Rita takes drastic steps to quiet a barking dog from its cynical owner who keeps her children up at night. Lt. Laguerta seeks a way to comfort the mother of the latest Ice Truck victim. Angel cannot find the right anniversary gift for his wife, who is currently separated from him. Also, the heat against Sgt. Doakes escalates when Guerrero's thugs begin tailing him. Written by Anonymous

After one of the Ice Truck Killer victims is found alive, that of security guard Tony Tucci, the rest of the squad begins to make headway. Debra locks horns with Sgt. Doakes who disapproves of her gentile and somewhat naive methods for questioning the traumatized Tucci whereas Debra objects to Doakes cynical and hard-nosed investigation. After learning from Rita about a human trafficker smuggling Cubian immigrants into the country, Dexter decides to stalk the most obvious suspect, auto yard owner Jorge Castillo (aka: The Coyote). But Dexter learns he may be in over his head when he discovers that Castillo's wife is also involved in the illegal activities. Also, Dexter finally learns about Angel's marital problems, while Dexter also recalls more tutoring from his stepfather, Harry, about courting a girl during Dexter's junior high school prom. Written by Anonymous

Dexter struggles to keep in control when the still-unseen Ice Truck Killer leaves the dead body of Valerie Castillo, Dexter's most recent kill, at the auto yard, which puts Dexter in dangerous proximity to being discovered by his colleagues, which is worsened when a young Cuban boy is also found at the scene claiming to have seen who killed Mrs. Castillo. Dexter must stay one step ahead of his own friends by tampering with Vince Masuka, the medical coroner's, e-mails, then tries derailing Debra's suspicions to a copycat killing, and always half-expecting to be arrested. Lt. Laguerta tries to be compassionate to the little Cuban boy whom she tries to asks for a sketch of the man he saw. Meanwhile, Rita gets an unpleasant phone call from her abusive ex-husband, Paul, who has just gotten paroled from prison and wants to visit Rita on her daughter Astor's birthday. Dexter also recalls a row he had with his stepfather over including Debra in their hunting trips. Also, Doakes asks Debra to ... Written by Anonymous

Debra and Angel identify the Ice Truck Killer as Neil Perry, a taxidermist with a history of mental illness and violence. After tracking down Perry to a sleazy motel, Debra and Angel arrest him where he gleefully confesses to the crimes. But when Dexter later meets Perry, something about his confession does not sit right with him. Lt. Laguerta sees the arrest of Perry as a way to further advance her political career, but feels betrayed when her superior, Captain Matthews takes the credit. Debra begins to have a meeting of minds with Rudy, the prosthetic manufacturer who works at the hospital, and asks him on a date. Meanwhile, Rita must try to adjust herself when Paul, her violent-tempered and recently paroled husband, shows up and throws his weight around by attempting to be compassionate to their children, Astor and Cody. Also, Dexter tries to cover up his past mistake when Jeremy Downs, one victim who Dexter allowed to escape, is arrested again for a murder charge. Written by Anonymous

The suicide of a wealthy and powerful businesswoman leads Dexter to suspect that her psychologist may have killed her. But Dexter gets a surprise of his own when he pays a visit to the suspect, Dr. Emmett Meridian, which he forces Dexter to open up dark secrets from his past. Elsewhere, as Rita becomes more warmer to her ex-husband Paul, who claims to be a changed man, she wants to move onto intimacy with Dexter, who is afraid of consummating their romance. Meanwhile, Lt. Laguerta visits to Neil Perry makes her become more skeptical to his claims as the Ice Truck Killer. Also, Debra's romance with prosthetic specialist, Rudy, begins to heat up. Written by Anonymous

Dexter learns that his biological father (named Joe Driscoll), whom he was told had died 30 years ago, has just recently died and left him everything he owned, including his house. He goes on a trip to pack the items in the house, along with Rita. But later, Debra and Rudy also show up at the house to help out, where Dexter clicks with Rudy, while suspecting something strange about Joe Driscoll's death, and about who Dexter's biological mother was. Flashbacks to Dexter's childhood show him questioning Harry about who his real parents were, and about an accident which an anonymous person donated some of his blood to help the young Dexter during his surgery and it happened to be Mr. Driscoll. Back in Miami, Angel questions a shooting incident involving Doakes and a suspect. Also, Paul begins to slide back into his old habits when he suspects Rita is keeping him away from unsupervised visits to their children. Written by Anonymous

Dexter, sent to investigate a blood soaked crime scene, is gripped by a suppressed memory of childhood trauma. Meanwhile, Rita is charged with assaulting Paul and could lose the children in a custody battle. When Dexter finds out, he decides to take action to remove Paul from his and Rita's lives, but his solution is only temporary. Debra has a falling out with Rudy because he is spending more time bonding with Dexter than with her. Debra is still too naive and neurotic to see Rudy for the person he really is. During an evening out with the rowdy coroner Vince Masuka, Angel spots a local prostitute with a prosthetic hand whose fingernail polish resembles one of the Ice Truck Killer victims. Angel's hunch about a possible connection leads him back to Rudy. Lt. Laguerta's feud with her superior, Captain Matthews, intensifies over their handling of the Ice Truck Killer case. Matthews is more concerned about bad publicity than in uncovering and following all the clues in the case. Written by Anonymous

Dexter investigates when the Ice Truck Killer strikes again, killing the prosthetic arm prostitute and leaving her body before a Christmas tree in Miami's Santa's Cottage. Sgt. Doakes continues to grow more suspicious about Dexter after catching him in a series of lies about his connection to the Ice Truck Killer. Dexter finally finds a connection between him and the Ice Truck Killer over a past case involving Harry Morgan and a bloodbath crime scene back in 1973 involving Dexter's biological mother. Meanwhile, Lt. Maria Laguerta braces herself for dramatic changes in the department when the officious Captain Matthews maliciously makes her the scapegoat for the department's failure in the case to find the Ice Truck Killer, and he has her replaced. Rudy and Debra spend some quality time together in which he proposes marriage to the smitten detective. With Angel in the hospital recovering from the stabbing, his estranged wife pays a visit, while Rita decides to take her children, Astor ... Written by Anonymous

Dexter frantically searches for clues for Debra's whereabouts when Rudy, finally revealing himself as the Ice Truck Killer, abducts her and forces Dexter into a series of mind games to find her where he finally reveals his connection to Dexter: Rudy is actually Brian Moser, Dexter's long-long biological brother. Meanwhile, Lt. Laguerta locks horns against her replacement Lt. Esmee Pascal, who's even MORE officious and pompous than her or Captain Matthews, and who hampers the case by ignoring key evidence to further advance her own personal career. Sgt. Doakes finally comes to blows with Dexter over his denial with knowing the Ice Truck Killer, and Rita is contacted by the imprisoned Paul who tells her that Dexter framed him for his drug possession charge.