On a wild and rugged island cut off and isolated to some, artist Nell feels the island is her home. It is the source of inspiration for her art, rooted in landscape, folklore and the feminine. The mysterious Inions, a commune of women who have travelled there from all over the world, consider it a place of refuge and safety, of solace in nature. All the islanders live alongside the strange murmurings that seem to emanate from within the depths of the island, a sound that is almost supernatural – a Summoning as the Inions call it. One day, a letter arrives at Nell’s door from the reclusive Inions who invite Nell into the commune for a commission to produce a magnificent art piece to celebrate their long history. In its creation, Nell will discover things about the community and about herself that will challenge everything she thought she knew.