Nicol Williamson (Michael Marler)Ann Bell (Rosemary Marler)Lilita De Barros (Maria)Tom Kempinski (Brunzy)Kenneth Hendel (Davidson)Douglas Wilmer (Moyle)Barbara Ewing (Joan)Zena Walker (Hilda Greening)Paul Rogers (John Hazlitt)Gwen Nelson (Marler's Mother)Christine Hargreaves (Kath)Ernest C. Jennings (Dad (John Joe))Rachel Roberts (Joyce Eglington)Godfrey Quigley (Dr. Carolan)Desmond Perry (Father Madden)Patricia Gratton (Singer)The Spectrum (Pop Group)J.G. Devlin (Cocky Burke)
Michael Marler, a successful business man in London, is about to make his way to the top. The death of his father brings him - after five years - back to his hometown Liverpool, where he is confronted with his lost Irish roots. He finds out that his father died because of a fight with some anglo-saxon teddy boys. It becomes "a matter of honour" for him, to take his revenge without involving the British police.