Dreamlike satire about a young man who resists getting a job at the lone employing conglomerate in his dreary industrial town, but changes his mind when he discovers the plant's boiler room has the perfect climate to assist him with his pet horticultural (fungal) project.

David Warner
as Valentine Brose

Cilla Black
as Betty Dorrick

Alan Howard
as Reverend Mort

John Steiner
as Anthony

Zia Mohyeddin
as Dr Aly Narayana

David Waller
as Mr Price

Elizabeth Spriggs
as Mrs Murray

Jan Holden
as Mrs Price

Tony Church
as Mr Arkwright

Joe Gladwin
as Pa Brose