When a Death Row inmate mysteriously and suddenly collapses after hallucinating, House jumps at the chance to take the case for its difficulty and because it's "cool."

A girl's unimaginable bravery toward her terminal illness makes House suspicious as he puts a life-or-death decision about her case in her young hands.

Cuddy struggles with a case of guilt when her handyman is injured while at her place, and House and his team have to work fast to save the young man's pursuit of the American Dream.

House's patient is willing to die in order to further his social cause.

Lies between a father and son may prevent House and his team from saving their patient.

House's wheels start turning when a pro-cyclist admits to taking performance-enhancing drugs.

A patient with AIDS stalks House to get him to take his case; House and Stacy stalk a mouse in her attic; and Cameron faces a health scare of her own.

A patient's death prompts an investigation into whether Chase or House may have been responsible for her death.

Pewna hazardzistka traci przytomność podczas wyścigów konnych. Zostaje pacjentką House’a. Wkrótce wychodzi na jaw, że kobieta sama wywołuje u siebie różne objawy, by być leczoną. Cameron, by to sprawdzić, zostawia jej fiolkę z antybiotykiem. Pacjentka połyka go. Zespół bagatelizuje objawy wskazujące na Zespół Münchhausena. House przeprowadza jej rozmowę, w której przyznaje się, że jej matka była chora na stwardnienie rozsiane i była przez to rozpieszczana. Po wyleczeniu, pacjentka nadal korzysta z porad różnych lekarzy.

Do szpitala trafia mężczyzna, który po urazie głowy cierpi na problemy z mową i agrafię. Wkrótce jego stan się pogarsza, przestają działać niektóre organy. Mężczyzna porozumiewa się jedynie za pomocą słów „tak” i „nie”. Gdy próbuje powiedzieć coś innego, wypowiada słowa podobne znaczeniowo lub w wymowie. Przyznaje się, że brał lekkie narkotyki i alkohol. Wkrótce okazuje się, że w jego mózgu jest blizna. Tymczasem House i Stacy przebywają w podróży służbowej w Baltimore. House musi wytłumaczyć nieuzasadnione użycie różnych lekarstw. Pracownik służby zdrowia nie jest zachwycony zachowaniem House’a, jednak ratuje go Stacy. Okazuje się, że ta sprawdziła kiedy odlatuje samolot Grega, by lecieć innym. Jednak wszystkie loty zostają przesunięte ze względu na złą pogodę. Stacy wynajmuje pokój w lotniskowym hotelu i zaprasza do niego House’a by nie spał na rozłożonych na lotnisku leżankach.

Margo, młoda gospodyni domowa, przyjmująca leki na bezpłodność, trafia do szpitala, po tym jak przez niekontrolowane wymachiwanie rękami, powoduje wypadek samochodowy. Objawy Margo pogarszają się, lekarzom wydaje się, że przyczyną może być choroba Huntingtona. Kiedy jednak kobieta zaczyna majaczyć, pojawiają się u niej ślady paranoi. House i spółka jeszcze raz przekonują się, że nie wszyscy mówią prawdę. Po powrocie z Baltimore House i Stacy odnawiają swój związek. Wilson martwi się o House’a, i obawia się, że przyjaciel znowu pakuje się w emocjonalne tarapaty. Cameron nie chce odebrać swoich testów na obecność wirusa HIV.

While a severely burned teenager is admitted and his blood tests come back with strange results, House makes himself the guinea pig in his own unofficial tests of a new drug designed to treat migraines to prove a former medical school colleague is wrong about the drug.

House uncovers a startling secret when he treats a teenage supermodel for heroin addiction. Meanwhile, Wilson hopes the increased leg pain in House's leg is an indication his leg nerves are regenerating.

House takes the case of a man who experienced a seizure but wasn't aware it happened. When the man suffers a heart attack and needs a heart transplant, the team races to diagnose a dead woman's illness so they can harvest her heart to save their living patient.

House believes a woman is trying to kill her husband and tries to find the proof to confirm his suspicions. When Wilson moves in with House after separating from his wife, he learns Wilson is a great cook.

A teenage heart transplant patient is rushed to the hospital when she has an allergic reaction while living in a "clean" room, and House and Wilson work out the kinks of their new living arrangement.

When a six-year-old boy is brought in with the same symptoms as another patient who died years ago under House's care, House believes the cases are identical and he can predict the course of the boy's illness. Meanwhile, the clinic hosts a poker night to benefit the oncology department.

House has to work fast when a woman comes in with a life-threatening case of insomnia. Meanwhile Cameron is angry at Foreman for stealing an article she worked on.

When a police officer with a gunshot wound to the head and uncontrollable laughter is admitted, House and the team are baffled. When Foreman begins showing the same symptoms, they race to determine the cause of the illness before Foreman's condition takes the same path.

Foreman continues to experience the same progression of symptoms as the police officer. When he realizes he may be facing imminent death, he calls his father who comes to his son's side. As it comes down to a race against time, House believes the solution to the illness is in the police officer's apartment.

A young mother has a seizure while bathing her newborn son and nearly drowns him. House and the team have two cases at one time as they try to save the infant and determine the cause of the mother's seizures.

A 16-year-old Hurricane Katrina victim suffering from hallucinations as a result of the tragedy is brought to House by his former bandmate who recently found out the girl is his daughter. Although House fears his friend is being scammed, he takes the case. As he works his way through the girl's lies so he can diagnose and treat her, he's forced to tell a few lies of his own.

House is shot by a former patient and must share a recovery room with the gunman.