In "The Banshees of Inisherin", we follow two good friends, Padraic (Colin Farrell) and Colm (Brendan Gleeson), who find themselves in a difficult situation when Colm suddenly decides to end their friendship.
On the island off the West coast of Ireland, where the two live, a confused Padraic tries to revive the friendship with the help of his sister Siobhan (Kerry Condon), who has her own problems with Dominic, the son of the local policeman. The events escalate completely when Colm sets a drastic ultimatum to make his intention to end the friendship clear.