Ep 18. Open and Shut

House season 6 episode 18, titled "Open and Shut," revolves around a case where the team has to diagnose a woman named Ava who has had a history of heart problems and has recently undergone a heart transplant. Right after the surgery, she experiences an episode of unconsciousness and now, no one seems to know what's wrong with her.

As the team tries to unravel the mystery of Ava's condition, they come across a number of obstacles. For one, Ava seems to be holding something back, and it is only after several rounds of questioning that she finally breaks down and admits to drug addiction. Moreover, the patient's medical history seems to suggest that she might have had a mental breakdown, leaving the doctors to grapple with the question of whether the symptoms they are seeing are purely physical or a result of Ava's mental condition.

However, the greatest obstacle that the team faces is the fact that they are divided in their opinions about the case. While Foreman and Taub believe that the situation is purely physical, House thinks otherwise and suspects that Ava's symptoms are psychosomatic in nature. As the team is pushed to the brink trying to come up with a cure, House's ideas and theories come in handy and eventually lead them towards a breakthrough.

During the episode, House has to deal with personal issues as well. He is forced to confront the fact that he may have infected his former girlfriend, Cuddy, with a medical condition, and he is also dealing with the emotional aftermath of breaking up with his latest fling.

As is characteristic of the show, there is a great deal of banter between the characters, especially House and Wilson, which adds a light touch to the intense medical drama. There are also several scenes where House displays his trademark wit and sarcasm, making the episode engaging and entertaining for viewers.

Overall, House season 6 episode 18 is a tense and gripping episode that draws viewers in with its intriguing medical mystery and the personal struggles of its primary characters. With its blend of drama, humor, and suspense, it is an excellent example of what makes House such a beloved and enduring TV show.