It follows an American named Alexander Fox (Cannavale) who begins an idyllic new life in the tiny sovereign state of Andorra after a personal tragedy, determined to reinvent himself. But as he becomes entangled in the lives of the mysterious locals, including the retired Australian Mrs. Dent (Debicki) and the matriarch’s daughter Miss Quay (Wilson), the mystery of Alexander’s origin deepens. When bodies emerge in the harbour, he finds himself in a spiralling crisis of conscience and identity, in a country he may not be able to escape from.