ThefilmcentersonDr.Marcus,arenownedpsychiatristwhohasselected6severementallyillanddangerouspatientsfromtheSpringValleyMentalHospitaltointerviewaspartofresearchforhisnewbook.AsDr.Marcusinterviewseachpatient,onebyonethehorrorstheyhavecommittedbegintounfold.However,Dr.Marcussoonlearnsthatthereisonepatientwhotiesthemalltogether-PatientSevenaaa
