Watch House: Season 7, Episode 18

"The Dig"

House discovers that Thirteen has been in prison for the past six months, and attempts to discover what crime she was guilty of, while also enlisting her help in defeating his spud gun nemesis. Meanwhile, the team takes the case of a teacher (Terry Maratos) who is coughing up blood. When they search his home, they find it filled with garbage. But even more disturbing is finding his wife (Kimberlee Peterson) hiding beneath the filth.

Final Diagnosis: Nina: Ehlers-Danlos syndrome.