Young Jacob who suffers from zoanthropy believes he is a wolf and is committed to a mental asylum following an attack on his brother. There he meets and befriends the other patients and witnesses the brutal methods of treatment.

Jacob, a man who believes he is a wolf trapped in a human body, is sent to a clinic by his family where he is forced to undergo increasingly extreme forms of "curative" therapies at the hands of The Zookeeper. Jacob's only solace is the enigmatic wildcat with whom he roams the hospital in the dead of night. The two form an improbable friendship that develops into infatuation.