Mysterious Creatures (2006)

Feature-length ITV drama based on real events. Bill and Wendy Ainscow (Timothy Spall and Brenda Blethyn) are a middle class, middle-aged Birmingham couple locked in a deeply dysfunctional relationship with their 32-year-old daughter Lisa (Rebekah Staton). In a culmination of years spent unsuccessfully trying to obtain a diagnosis and get state help to deal with with Lisa's condition - which eventually turns out to be Asperger's syndrome - Bill and Wendy are ultimately driven to desperate measures with tragic consequences.