A young artist gets stranded in an extensive, immaculate forest in western Ireland, where, after finding shelter, she becomes trapped alongside three strangers, stalked by mysterious creatures each night.

Prosthetics scientist Abi and her adulterous husband Paul adjust to life outside the city as Abi begins working for high-tech company Integrate, developing a humanoid AI – T.I.M.

Lennon, a new back-country ranger, travels alone through the dangerous wilderness, hoping to uncover the origins of a tragedy that has haunted her since she was a child.