
The circus comes to Grimm in this episode – Carnival Metamorphosia to be exact, which is a thinly veiled excuse to have Wesen woge and entertain humans. Sam Witwer (Being Human) plays Max, a blutbad in the circus, who when the episode opens seems to be cheating on his girlfriend with two human girls. They’re intent on figuring out how he changed into the Wolfman they just saw during the show. Max woges and the next thing we know, Hank and Nick are being called in to investigate the girls’ murders.