When it appears that Lucy Palermo, a schizophrenic mom with deadly deep vein thrombosis, is lying about her alcohol intake, Dr. House is the lone voice of reason. Under the scrutiny of her hyper-vigilant teenage son, House takes Lucy off all her medication and secretly sends Foreman and Chase to search her apartment for clues. An anonymous call to Social Services makes House question whether Lucy is really schizophrenic, and causes Lucy's son, Lucas, to blame Dr. House for making the call. Wading through Lucy's altered reality to get to the truth and save her life, House discovers it isn't mom who's keeping the secrets and reality isn't always what it seems.