Malcolm is a chronically shy mechanical genius, who has just been fired for building his own tram. He gets Frank, who has just been released from jail, to move in to help pay the bills. With Frank's help, Malcolm turns to a life of crime.

Colin Friels
as Malcolm Hughes

Lindy Davies
as Judith

Chris Haywood
as Willy

John Hargreaves
as Frank Baker

Beverley Phillips
as Mrs. T

Judith Stratford
as Jenny

Heather Mitchell
as Barmaid

Charles Tingwell
as Tramways supervisor

Tony Mahood
as Tram Conductor

David Letch
as Restaurant Hoon #2