'Apart'

The mention of an ICD code in the synopsis got my attention. WHO describes ICD 10 F24:

F24 Induced Delusional Disorder
A rare delusional disorder shared by two or occasionally more people with close emotional links. Only one person suffers from a genuine psychotic disorder; the delusions are induced in the other(s) and usually disappear when the people are separated. The psychotic illness of the dominant person is most commonly schizophrenic, but this is not necessarily or invariably so. Both the original delusions in the dominant person and the induced delusions are usually chronic and either persecutory or grandiose in nature. Delusional beliefs are transmitted this way only in uncommon circumstances. Almost invariably, the people concerned have an unusually close relationship and are isolated from others by language, culture, or geography. The individual in whom the delusions are induced is usually dependent on or subservient to the person with the genuine psychosis.

Could be a cool flick.