Believing he is a wolf trapped in a human body, Jacob (George MacKay) eats, sleeps, and lives like a wolf. He's sent to a clinic where he undergoes increasingly extreme forms of 'curative' therapies at the hands of The Zookeeper (Paddy Considine). However, once he meets the mysterious Wildcat (Lily-Rose Depp), and as their friendship blossoms into an undeniable infatuation, Jacob is faced with a challenge: will he renounce his true self for love?