Movie set in scotland or somewhere up north [closed]

You're describing the Scottish gangster film The Wee Man from 2013.

In 1990 Glasgow, Paul Ferris (Martin Compston) is incarcerated at Barlinnie Prison in Glasgow. In his cell, he reflects on his childhood.

One night, young Paul's father puts him to bed after he is awoken by an assault in a van outside. [...] The next morning, while walking his dog, Paul witnesses an armed robbery on a local off-license by the Banks brothers, infamous local hooligans of a crime family, who afterwards harass young Paul and murder his dog.

In his teenage years, Paul is making his way to a party, when his father spies him carrying a knife, and convinces him to drop it. Later, the Banks brothers crash the party, threatening Paul and wrecking the house. In a fit of rage, Paul goes back to retrieve the knife, and returns to the house to find two of the Banks brothers sexually assaulting his girlfriend. He stabs both of them (albeit not killing them) and flees to his older sister's house, where she berates him for the violence, as their older brother is serving life in prison for murder. [...]

In prison, Paul arranges for one of the Banks brothers also in prison to be killed, and fights his associate and friend Bob in order to be both thrown into solitary as an alibi.

Paul rises in the ranks after being released. The film was based on a true story. Here's the trailer: