Information for Sealskin at Capstone Theatre, Liverpool (Play). In a village far away, by the wild landscape of the sea, every full moon the Selkies appear. As they peel away their seal skin, they dance freely in the moonlight, as humans. One such night a fisherman discovers their secret and, stealing away a Selkie's skin, our story begins. A battle of longing and belonging, SealSkin is a powerful story of betrayal, power, otherness and loss.