The Reckoning (1970)

"The Most Successful Man In Town"

Michael Marler, a successful businessman in London, is about to make his way to the top. After 37 years, the death of his father brings him back to his hometown of Liverpool, where he’s confronted with his lost Irish roots. He finds out that his father died in a fight with some Anglo-Saxon teddy boys. It becomes a matter of honour for him to take his revenge without involving the police.