Three philosophy professors travel to Prague for a conference. One of them, Anderson, is forced to rethink his ideas on ethics when a former student is arrested by the Czech authorities for writing about individualist approaches to morality.

Peter Barkworth
Anderson

John Shrapnel
McKendrick

Stephen Rea
Hollar

Richard O'Callaghan
Chetwyn

Shane Rimmer
Stone

David de Keyser
Captain

Bernard Hill
Broadbent
Billy Hamon
Crisp

Sam Kelly
Grayson
Victor Langley
Chamberlain
Susan Strawson
Mrs. Hollar
Stefan Ceba
Sacha Hollar
Graeme Eton
Frenchman
Ivan Jelinek
Chairman

Milos Kirek
Plain Clothes Policeman