Ethan Shaw-lighthouse keeper and local witch-lives a charmed life in his chilly, coastal hometown. Blessed with a flourishing garden and a stable livelihood, Ethan can't complain. But when his husband, Captain Peter Vásquez, brings home a wounded leopard seal after an impromptu storm, Ethan is faced with a curious situation: caring for a lost selkie named Nico Locke.

As Ethan struggles with the possibility of being infertile, insecurities surrounding his marriage, and a newly formed magical bond with a hostile, handsome selkie, his comfortable life begins to fracture. But could breakage lead to something better?

With autumn at their heels and winter on the horizon, Ethan, Peter, and Nico test the boundaries of a new relationship, shared intimacy, and the chance at a future together.