Inmate C41 is the youngest registered "feral" shapeshifter -- someone unable to control his animal urges and aggressions. When he turns eighteen he is transferred to the Adult Feral Rehabilitation Center in Scotland, where he meets a mysterious American government agent who endlessly probes him with questions. C41 does the only thing he thinks will help him survive - he lies. And that starts a chain of events that will either end in a prison break or a life of torture.