Donnybrook (2018)

Soldier Earl and Angus Chainsaws both exist outside a decent society. They are not familiar with each other, and practically nothing binds them, except for the only principle - always go to the end. A caring husband who is ready for anything for the sake of his sick wife, and a ruthless and bloodthirsty drug dealer - they will eventually meet in a cage for fighting without rules. And the winner will be only one.