Set on a remote island off the west coast of Ireland, The Banshees of Inisherin follows lifelong friends Padraic and Colm, who find themselves at an impasse when Colm unexpectedly puts an end to their friendship.
A stunned Padraic, aided by his sister Siobhan and troubled young islander Dominic, endeavours to repair the relationship, refusing to take no for an answer but Padraic's repeated efforts only strengthen his former friend's resolve and when Colm delivers desperate ultimatums, events swiftly escalate with shocking consequences.