Martin Durnley is a young man with an infantilizing mother, resentful stepfather and an institutionalized brother with Down's syndrome. To cope, he retreats into an alternate child personality he calls Georgie. After being caught during a theft attempt at a department store, he befriends a female customer who is sympathetic to him, but his friendship soon turns into obsession.

Hayley Millsas Susan Harper
Hywel Bennettas Martin (Georgie) Durnley
Billie Whitelawas Joan Harper
Frank Finlayas Henry Durnley
Barry Fosteras Gerry Henderson
Phyllis Calvertas Enid Durnley
Salmaan Peerzadaas Shashie Kadir
Christian Robertsas Philip Harvey
Gretchen Franklinas Clarkie
Timothy Westas Superintendant Dakin