A wildlife volunteer on an uninhabited island off the British coast descends into a terrifying madness that challenges her grip on reality and pushes her into a living nightmare.
Mary Woodvine
The Volunteer
Edward Rowe
The Boatman
Flo Crowe
The Girl
John Woodvine
The Preacher
Joe Gray
The Miner
Loveday Twomlow
The Baby
Callum Mitchell
Sound Engineer
Morgan Val Baker
The Boatman (uncredited)
