The Attentionist

Awkward 14-year-old Maeve and her older sister Reg ache for a way into the glittering world of the Cape Cod waterfront elite, and a secret phone romance with a boy from the local boat club finally makes that dream feel possible. But when the voice on the line begins to reveal something monstrous, Maeve doesn’t hang up, drawing her family deeper into the dark.

Selected season 1, episode 1.