A woman’s delusions drive her to commit a deadly crime – Jacqueline Toboni, Alexis Denisof and Louise Lombard guest star – Nick (David Giuntoli) and Hank (Russell Hornsby) are called to the scene of a crime where the suspect swears she was driven to madness by a very persistent talking wolf. Meanwhile, Nick and Juliette (Bitsie Tulloch) wonder if getting his Grimm powers back is worth giving up a normal life. Elsewhere, Bud (guest star Danny Bruno) hopes Trubel (guest star Jacqueline Toboni) can help take care of a Wesen-related issue, and the threats against Monroe’s (Silas Weir Mitchell) and Rosalee’s (Bree Turner) inter-wesen marriage heat up. In Austria, Adalind (Claire Coffee) continues her perilous trek in the hopes of retrieving her daughter. Sasha Roiz and Reggie Lee also star.