An ambitious young executive is sent to retrieve his company's CEO from an idyllic but mysterious 'wellness center' at a remote location in the Swiss Alps. He soon suspects that the spa's miraculous treatments are not what they seem. When he begins to unravel its terrifying secrets, his sanity is tested, as he finds himself diagnosed with the same curious illness that keeps all the guests here longing for the cure.

Tom Parker is obsessed with turning the sleepy seaside village of Sanditon into a fashionable health resort, enlisting the backing of local bigwig Lady Denham. Through a mishap, Tom makes the acquaintance of the Heywoods and invites their eldest daughter, Charlotte, for an extended stay at Sanditon. Meanwhile, Lady Denham, a widow, is playing matchmaker for her destitute nephew, Sir Edward, who is determined to seduce Lady Denham's ward, Clara. "Sanditon's...